So I've only bee on a couple of 3 night cruises and have just booked a 4 night Halloween on the high seas cruise on the Dream. It just occurred to me that this means we'll be dining in one of the mdrs more than once. So can we request which mdr we would like to go to twice, or is everyone assigned the same ones? Also since there are only 3 main shows will they have any special entertainment for the additional night? Thanks