You can use the User Profile Page section to configure allowing guests to cancel appointments and to gather feedback.
To configure the display of the sections
At the Organization level, click the Admin icon.
Navigate to Organization > Organizations > Online Booking.
Select Webstore V2 template.
Expand the User Profile Page section.
Enable the desired sections to display the option in the users’ profiles:
Allow guest to Cancel Appointments: Enable this setting to allow guest to cancel appointments online.
Allow guest to enter feedback for completed appointments: Enable this setting to allow guest to enter feedback for their appointments.
After you configure the above settings, click Publish to publish all the configured settings.