Step by step
Open the booking on Calendar
Go to Calendar and click the booking. Booking Details opens in the side panel.
Choose Reschedule
Under Actions, choose Reschedule. The Reschedule booking dialog opens.
Set New date and New time
Enter the New date and New time you want, then choose Check availability. Fix any conflicts before you continue.
Move the booking
When the slot is free, use Move now (owner/manager) or send the customer the timed offer if that option is shown. Confirm the move to finish.