As the others have said, you can put in a request, but that is not a guarantee, and you will not know if your request(s) have been met until you actually check in. In fact, if you check in and the room they have assigned for you is not yet ready for you to move in, the front desk will not give you your room number at that time (they will give you a room key and you have to check back and get the room number after the room is cleaned and ready for occupancy).