At the moment there is not an option to edit check-in and check-out dates, capacity, services and accommodation type at bookings that have been already submitted. We recommend to cancel it and make a new reservation with correct details. Or you may add some information to the 'Notes' field if your guest forgot something.
We'll review the possibility to enable editing of this information in one of the next updates. You may leave your comments below saying what information your would like to edit at exiting Bookings.