Anyone know if this will be a problem or not: We have a reservation currently with my husband and I at the Swan Thanksgiving week. We now will have our 20 year old daughter joining us from college. When I go onto the Marriott site and try to modify my reservation to show 3 adults (we have a 2 queen room booked now) it says I can't do it because the hotel is sold out. I want the same room, just want to add our daughter. Anyone know the answer? I can call, just thought I would check here first! thank you