DME is basically running 24/7. If you stay at the Hyatt, then just give a flight number of a flight coming in around the time you will want to leave the airport. Say you want to leave MCO about 9:00, tell them you are arriving on a flight that arrives at 8:30ish. You will have to take your luggage with you on the bus though. If you are staying on DVC points, MS will make the DME arrangements for you. Otherwise, have CRO make them for you. They will need the flight number, arrival time.