If you have recently received a calendar appointment in your New School Email, you may have noticed the new RSVP feature. The Quick Action RSVP button for events appears to the right of the email subject line in calendar invites. Click the RSVP button to the right of the email subject line in calendar invites to see an event card with buttons for confirming your attendance. This feature is designed to streamline your appointment/calendar management.
Visit Google Support for more information about managing your appointment responses with Google Apps.