The Session initiator can send a personal message to all the participants.

The Progress Bar shows ‘message’ as the current stage. The ‘Next’ button is disabled until a message is entered. User can navigate to the earlier stages by clicking on the ‘previous’ button.
Message should be upto 1000 characters long.If the message exceeds beyond 1000 characters a validation message is shown.

If a user wants to cancel the session,then the progress chart section has a ‘Cancel session’ link at the bottom right corner. On click of the ‘Cancel session’ link a popup will be shown.
There are two options on cancel, On Click of the ‘No,I’m not’ button,the popup gets dismissed.The popup has a close button (X) as well, on click of close button the popup gets dismissed. If user clicks on the ‘Yes,I’m sure’ button the session is cancelled and user gets navigated to the collaboration dashboard.