                  <button class="mui-btn mui-btn--raised mui-btn--danger end">End Conversation</button>
                    </div>
                    <div id="step3" style="display:none">
                        <button class="mui-btn mui-btn--raised mui-btn--primary unmute">Unmute</button>
                        <button class="mui-btn mui-btn--raised mui-btn--danger end">End Conversation</button>
                    </div>
                    <div id="step4" class="step4" style="display: none">
         