diff --git a/client/coral-admin/src/actions/rejectUsernameDialog.js b/client/coral-admin/src/actions/rejectUsernameDialog.js
new file mode 100644
index 000000000..946b36ef7
--- /dev/null
+++ b/client/coral-admin/src/actions/rejectUsernameDialog.js
@@ -0,0 +1,14 @@
+import {
+  SHOW_REJECT_USERNAME_DIALOG,
+  HIDE_REJECT_USERNAME_DIALOG,
+} from '../constants/rejectUsernameDialog';
+
+export const showRejectUsernameDialog = ({ userId, username }) => ({
+  type: SHOW_REJECT_USERNAME_DIALOG,
+  userId,
+  username,
+});
+
+export const hideRejectUsernameDialog = () => ({
+  type: HIDE_REJECT_USERNAME_DIALOG,
+});
diff --git a/client/coral-admin/src/components/RejectUsernameDialog.css b/client/coral-admin/src/components/RejectUsernameDialog.css
new file mode 100644
index 000000000..1c96f509a
--- /dev/null
+++ b/client/coral-admin/src/components/RejectUsernameDialog.css
@@ -0,0 +1,90 @@
+.dialog {
+  border: none;
+  box-shadow: 0 9px 46px 8px rgba(0, 0, 0, 0.14), 0 11px 15px -7px rgba(0, 0, 0, 0.12), 0 24px 38px 3px rgba(0, 0, 0, 0.2);
+  width: 400px;
+  top: 50%;
+  transform: translateY(-50%);
+  padding: 20px;
+  border-radius: 4px;
+}
+
+.header {
+  color: black;
+  font-size: 1.5em;
+  font-weight: 500;
+  margin: 0 0 8px 0;
+}
+
+.close {
+  display: block;
+  position: absolute;
+  top: 24px;
+  right: 20px;
+}
+
+.closeButton {
+  userSelect: none;
+  outline: none;
+  border: none;
+  touchAction: manipulation;
+  &::-moz-focus-inner: {
+    border: 0;
+  }
+  background: 0;
+  padding: 0;
+  font-size: 24px;
+  line-height: 14px;
+  cursor: pointer;
+  color: #363636;
+  &:hover {
+    color: #6b6b6b;
+  }
+}
+
+.legend {
+  padding: 0;
+  font-weight: bold;
+}
+
+div.radioGroup {
+  margin-top: 6px;
+}
+
+label.radioGroup {
+
+  &:global(.is-checked) > :global(.mdl-radio__outer-circle),
+  > :global(.mdl-radio__outer-circle) {
+    border-color: #212121;
+  }
+
+  > :global(.mdl-radio__inner-circle) {
+    background: #212121;
+  }
+
+  > :global(.mdl-radio__label) {
+    font-size: 14px;
+    line-height: 20px;
+  }
+}
+
+.messageInput {
+  border-radius: 3px;
+  width: 100%;
+  padding: 10px;
+  font-size: 14px;
+  box-sizing: border-box;
+}
+
+.cancel {
+  margin-right: 5px;
+}
+
+.perform {
+  min-width: 90px;
+}
+
+.buttons {
+  margin-top: 8px;
+  margin-bottom: 6px;
+  text-align: right;
+}
diff --git a/client/coral-admin/src/components/RejectUsernameDialog.js b/client/coral-admin/src/components/RejectUsernameDialog.js
new file mode 100644
index 000000000..cdd211bc4
--- /dev/null
+++ b/client/coral-admin/src/components/RejectUsernameDialog.js
@@ -0,0 +1,188 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import { Dialog } from 'coral-ui';
+import { RadioGroup, Radio } from 'react-mdl';
+import styles from './SuspendUserDialog.css';
+import cn from 'classnames';
+
+import Button from 'coral-ui/components/Button';
+
+import t, { timeago } from 'coral-framework/services/i18n';
+import { dateAdd } from 'coral-framework/utils';
+
+const initialState = { step: 0, duration: '3' };
+
+function durationsToDate(hours) {
+  // Add 1 minute more to help `timeago.js` to display the correct duration.
+  return dateAdd(new Date(), 'minute', hours * 60 + 1);
+}
+
+class SuspendUserDialog extends React.Component {
+  state = initialState;
+
+  componentWillReceiveProps(next) {
+    if (this.props.open && !next.open) {
+      this.setState(initialState);
+    }
+  }
+
+  handleDurationChange = event => {
+    this.setState({ duration: event.target.value });
+  };
+
+  handleMessageChange = event => {
+    this.setState({ message: event.target.value });
+  };
+
+  goToStep1 = () => {
+    this.setState({
+      step: 1,
+      message: t(
+        'suspenduser.email_message_suspend',
+        this.props.username,
+        this.props.organizationName,
+        timeago(durationsToDate(this.state.duration))
+      ),
+    });
+  };
+
+  handlePerform = () => {
+    this.props.onPerform({
+      message: this.state.message,
+
+      // Add 1 minute more to help `timeago.js` to display the correct duration.
+      until: durationsToDate(this.state.duration),
+    });
+  };
+
+  renderStep0() {
+    const { onCancel, username } = this.props;
+    const { duration } = this.state;
+    return (
+      <section className="talk-admin-suspend-user-dialog-step-0">
+        <h1 className={styles.header}>{t('suspenduser.title_suspend')}</h1>
+        <p className={styles.description}>
+          {t('suspenduser.description_suspend', username)}
+        </p>
+        <fieldset>
+          <legend className={styles.legend}>
+            {t('suspenduser.select_duration')}
+          </legend>
+          <RadioGroup
+            name="status filter"
+            value={duration}
+            childContainer="div"
+            onChange={this.handleDurationChange}
+            className={styles.radioGroup}
+          >
+            <Radio value="1">{t('suspenduser.one_hour')}</Radio>
+            <Radio value="3">{t('suspenduser.hours', 3)}</Radio>
+            <Radio value="24">{t('suspenduser.hours', 24)}</Radio>
+            <Radio value="168">{t('suspenduser.days', 7)}</Radio>
+          </RadioGroup>
+        </fieldset>
+        <div className={styles.buttons}>
+          <Button
+            cStyle="white"
+            className={styles.cancel}
+            onClick={onCancel}
+            raised
+          >
+            {t('suspenduser.cancel')}
+          </Button>
+          <Button
+            cStyle="black"
+            className={cn(
+              styles.perform,
+              'talk-admin-suspend-user-dialog-confirm'
+            )}
+            onClick={this.goToStep1}
+            raised
+          >
+            {t('suspenduser.suspend_user')}
+          </Button>
+        </div>
+      </section>
+    );
+  }
+
+  renderStep1() {
+    const { message } = this.state;
+    const { onCancel, username } = this.props;
+    return (
+      <section className="talk-admin-suspend-user-dialog-step-1">
+        <h1 className={styles.header}>{t('suspenduser.title_notify')}</h1>
+        <p className={styles.description}>
+          {t('suspenduser.description_notify', username)}
+        </p>
+        <fieldset>
+          <legend className={styles.legend}>
+            {t('suspenduser.write_message')}
+          </legend>
+          <textarea
+            rows={5}
+            className={styles.messageInput}
+            value={message}
+            onChange={this.handleMessageChange}
+          />
+        </fieldset>
+        <div className={styles.buttons}>
+          <Button
+            cStyle="white"
+            className={styles.cancel}
+            onClick={onCancel}
+            raised
+          >
+            {t('suspenduser.cancel')}
+          </Button>
+          <Button
+            cStyle="black"
+            className={cn(
+              styles.perform,
+              'talk-admin-suspend-user-dialog-send'
+            )}
+            onClick={this.handlePerform}
+            disabled={this.state.message.length === 0}
+            raised
+          >
+            {t('suspenduser.send')}
+          </Button>
+        </div>
+      </section>
+    );
+  }
+
+  render() {
+    const { open, onCancel } = this.props;
+    const { step } = this.state;
+    return (
+      <Dialog
+        className={cn(styles.dialog, 'talk-admin-suspend-user-dialog')}
+        onCancel={onCancel}
+        open={open}
+      >
+        <div className={styles.close}>
+          <button
+            aria-label="Close"
+            onClick={onCancel}
+            className={styles.closeButton}
+          >
+            ×
+          </button>
+        </div>
+        {step === 0 && this.renderStep0()}
+        {step === 1 && this.renderStep1()}
+      </Dialog>
+    );
+  }
+}
+
+SuspendUserDialog.propTypes = {
+  open: PropTypes.bool.isRequired,
+  onPerform: PropTypes.func.isRequired,
+  onCancel: PropTypes.func.isRequired,
+  organizationName: PropTypes.string,
+  username: PropTypes.string,
+};
+
+export default SuspendUserDialog;
diff --git a/client/coral-admin/src/components/UserDetail.js b/client/coral-admin/src/components/UserDetail.js
index 7a7d7a672..5572c7d71 100644
--- a/client/coral-admin/src/components/UserDetail.js
+++ b/client/coral-admin/src/components/UserDetail.js
@@ -51,6 +51,12 @@ class UserDetail extends React.Component {
       username: this.props.root.user.username,
     });
 
+  showRejectUsername = () =>
+    this.props.showBanUserDialog({
+      userId: this.props.root.user.id,
+      username: this.props.root.user.username,
+    });
+
   renderLoading() {
     return (
       <ClickOutside onClickOutside={this.props.hideUserDetail}>
@@ -230,7 +236,7 @@ class UserDetail extends React.Component {
                 </ActionsMenuItem>
               ) : (
                 <ActionsMenuItem
-                  onClick={() => this.rejectUsername({ id: user.id })}
+                  onClick={this.showRejectUsername}
                   disabled={me.id === user.id}
                 >
                   {t('user_detail.reject_username')}
diff --git a/client/coral-admin/src/constants/rejectUsernameDialog.js b/client/coral-admin/src/constants/rejectUsernameDialog.js
new file mode 100644
index 000000000..8ab48c106
--- /dev/null
+++ b/client/coral-admin/src/constants/rejectUsernameDialog.js
@@ -0,0 +1,2 @@
+export const SHOW_REJECT_USERNAME_DIALOG = 'SHOW_REJECT_USERNAME_DIALOG';
+export const HIDE_REJECT_USERNAME_DIALOG = 'HIDE_REJECT_USERNAME_DIALOG';
diff --git a/client/coral-admin/src/containers/Layout.js b/client/coral-admin/src/containers/Layout.js
index 580b20f9b..d8ca11732 100644
--- a/client/coral-admin/src/containers/Layout.js
+++ b/client/coral-admin/src/containers/Layout.js
@@ -6,6 +6,7 @@ import Login from '../containers/Login';
 import { FullLoading } from '../components/FullLoading';
 import BanUserDialog from './BanUserDialog';
 import SuspendUserDialog from './SuspendUserDialog';
+import RejectUsernameDialog from './RejectUsernameDialog';
 import { toggleModal as toggleShortcutModal } from '../actions/moderation';
 import { logout } from 'coral-framework/actions/auth';
 import { can } from 'coral-framework/services/perms';
@@ -41,6 +42,7 @@ class LayoutContainer extends React.Component {
           >
             <BanUserDialog />
             <SuspendUserDialog />
+            <RejectUsernameDialog />
             <UserDetail />
             {children}
           </Layout>
diff --git a/client/coral-admin/src/containers/RejectUsernameDialog.js b/client/coral-admin/src/containers/RejectUsernameDialog.js
new file mode 100644
index 000000000..83551200f
--- /dev/null
+++ b/client/coral-admin/src/containers/RejectUsernameDialog.js
@@ -0,0 +1,79 @@
+// import React, { Component } from 'react';
+// import PropTypes from 'prop-types';
+// import { connect } from 'react-redux';
+// import { bindActionCreators } from 'redux';
+// import RejectUsernameDialog from '../components/RejectUsernameDialog';
+// import { hideRejectUsernameDialog } from '../actions/rejectUsernameDialog';
+// import { withRejectUsername } from 'coral-framework/graphql/mutations';
+// import { compose } from 'react-apollo';
+// import t from 'coral-framework/services/i18n';
+
+// class RejectUsernameDialogContainer extends Component {
+//   banUser = async () => {
+//     const {
+//       userId,
+//       commentId,
+//       commentStatus,
+//       banUser,
+//       setCommentStatus,
+//       hideBanUserDialog,
+//     } = this.props;
+//     await banUser({ id: userId, message: '' });
+//     hideBanUserDialog();
+//     if (commentId && commentStatus && commentStatus !== 'REJECTED') {
+//       await setCommentStatus({ commentId, status: 'REJECTED' });
+//     }
+//   };
+
+//   getInfo() {
+//     let note = t('bandialog.note_ban_user');
+//     if (this.props.commentStatus && this.props.commentStatus !== 'REJECTED') {
+//       note = t('bandialog.note_reject_comment');
+//     }
+//     return t('bandialog.note', note);
+//   }
+
+//   render() {
+//     return (
+//       <BanUserDialog
+//         open={RejectUsernameDialog.props.open}
+//         onPerform={this.banUser}
+//         onCancel={this.props.hideBanUserDialog}
+//         username={this.props.username}
+
+//       />
+//     );
+//   }
+// }
+
+// BanUserDialogContainer.propTypes = {
+//   banUser: PropTypes.func.isRequired,
+//   hideBanUserDialog: PropTypes.func,
+//   open: PropTypes.bool,
+//   username: PropTypes.string,
+//   commentStatus: PropTypes.string,
+// };
+
+// const mapStateToProps = ({
+//   banUserDialog: { open, userId, username, commentId, commentStatus },
+// }) => ({
+//   open,
+//   userId,
+//   username,
+//   commentId,
+//   commentStatus,
+// });
+
+// const mapDispatchToProps = dispatch => ({
+//   ...bindActionCreators(
+//     {
+//       hideRejectUsernameDialog,
+//     },
+//     dispatch
+//   ),
+// });
+
+// export default compose(
+//   connect(mapStateToProps, mapDispatchToProps),
+//   withRejectUsername
+// )(RejectUsernameDialogContainer);
diff --git a/client/coral-admin/src/containers/UserDetail.js b/client/coral-admin/src/containers/UserDetail.js
index 5ab572afc..03ffee007 100644
--- a/client/coral-admin/src/containers/UserDetail.js
+++ b/client/coral-admin/src/containers/UserDetail.js
@@ -23,11 +23,13 @@ import {
   withUnbanUser,
   withUnsuspendUser,
   withRejectUsername,
+  withPostFlag,
 } from 'coral-framework/graphql/mutations';
 import UserDetailComment from './UserDetailComment';
 import update from 'immutability-helper';
 import { showBanUserDialog } from 'actions/banUserDialog';
 import { showSuspendUserDialog } from 'actions/suspendUserDialog';
+import { showRejectUsernameDialog } from 'actions/rejectUsernameDialog';
 
 const commentConnectionFragment = gql`
   fragment CoralAdmin_UserDetail_CommentConnection on CommentConnection {
@@ -279,6 +281,7 @@ const mapDispatchToProps = dispatch => ({
     {
       showBanUserDialog,
       showSuspendUserDialog,
+      showRejectUsernameDialog,
       changeTab,
       clearUserDetailSelections,
       toggleSelectCommentInUserDetail,
@@ -297,5 +300,6 @@ export default compose(
   withUnbanUser,
   withUnsuspendUser,
   withRejectUsername,
+  withPostFlag,
   withRouter
 )(UserDetailContainer);
diff --git a/client/coral-admin/src/reducers/index.js b/client/coral-admin/src/reducers/index.js
index be0a8a606..e806f5d11 100644
--- a/client/coral-admin/src/reducers/index.js
+++ b/client/coral-admin/src/reducers/index.js
@@ -5,10 +5,12 @@ import moderation from './moderation';
 import install from './install';
 import banUserDialog from './banUserDialog';
 import suspendUserDialog from './suspendUserDialog';
+import rejectUsernameDialog from './rejectUsernameDialog';
 import userDetail from './userDetail';
 import ui from './ui';
 
 export default {
+  rejectUsernameDialog,
   banUserDialog,
   configure,
   suspendUserDialog,
diff --git a/client/coral-admin/src/reducers/rejectUsernameDialog.js b/client/coral-admin/src/reducers/rejectUsernameDialog.js
new file mode 100644
index 000000000..2ed31066b
--- /dev/null
+++ b/client/coral-admin/src/reducers/rejectUsernameDialog.js
@@ -0,0 +1,29 @@
+import {
+  SHOW_REJECT_USERNAME_DIALOG,
+  HIDE_REJECT_USERNAME_DIALOG,
+} from '../constants/rejectUsernameDialog';
+
+const initialState = {
+  open: false,
+  userId: null,
+  username: '',
+};
+
+export default function rejectUsernameDialog(state = initialState, action) {
+  switch (action.type) {
+    case SHOW_REJECT_USERNAME_DIALOG:
+      return {
+        ...state,
+        open: true,
+        userId: action.userId,
+        username: action.username,
+      };
+    case HIDE_REJECT_USERNAME_DIALOG:
+      return {
+        ...state,
+        open: false,
+      };
+    default:
+      return state;
+  }
+}