If I make a reservation for 5 people and then call in the next few weeks to take it down to 4, will this create a problem? I want Liberty Tree for the week of Christmas but my daughter isn't sure if she can go yet so I may need to go down to 4. I don't want to lose the reservation but want to make sure we account for her just in case because I suspect it's much easier to go from 5 to 4 rather than 4 to 5.