When your staff member creates an appointment on their Office 365 work calendar, it will block their availability in Bookings. And when a booking is made by a customer using the Bookings online app, that booking shows up on their work calendar. Bookings won't show any personal information in the Bookings calendar. It will only show that the time isn't available for appointments.
Note: Bookings is available to customers with Office 365 Business Premium licenses.
Having problems syncing your staff's calendars? Check out Troubleshoot: This staff member's calendar can't be synced for solutions.
Sync work calendars to Bookings
To sync a user's personal Office 365 work calendar with Bookings, you'll need to turn this on for each staff member from the Staff page in Bookings. You also have to be the Bookings calendar admin to make this change.
Note: You can only sync calendars for users who have an Office 365 work account within your Office 365 organization. You can't use an external calendar, such as Outlook.com.
From the Office 365 app launcher, select Bookings.
Go to the Staff page.
Select the staff member whose calendar you want to sync with Bookings.
In the Availability section, select Events on personal calendar affect availability, and then click Save.