I have a 6 night package with Disney Dining booked for me and my son in mid January. we are staying at a value resort. We have made the final payment. My sister wants to join us for 2 of the days but does not need a ticket. I have a unused 3 day ticket from a couple of years ago that I can transfer to her. Can she stay in the room with us if I pay for the extra person charge? There are no available rooms that I can find at any of the resorts except the most expensive ones. She could not take off the the entire week we are going.