Once a booking is made, you cannot delete it, only reschedule it. Please note that you can reschedule lessons up to 10 minutes before their start.
Example
If your lesson starts at 1 p.m., please reschedule by 12:50 p.m. at the latest.
In the case that your student would like to cancel the booking altogether, please ask them to contact (market's support number) to have this booking removed.