It would be a good idea to separate the attributes section from the profile as you are only allowed to change them if there are no future booking and the desk screen isn't being held. This can cause issues as for example if you have about 60 bookings but the desk setup has changed, you are unable to make changes as you'll get an error message saying you can make changes with future booking in place. Meaning you'd have to remove all bookings in order to make changes which seems counter productive.