You can cancel a booking by going to “My Bookings”, selecting the booking, and tapping “Cancel Booking”. Enter a reason why you’re canceling and confirm. The parent will be notified that you’ve canceled.
Please be aware that not only does canceling a confirmed booking cause a lot of stress for the parent but it will also hurt your overall quality score maintained in Sitter. If you’re canceling on short notice, also be sure to call your agency so they can assist the client if needed.