They might let you do that. However, keep in mind that four of the cat 3 cabins (8100, 8102, 8600 and 8602) only sleep 4 people - 2 in the bed and 2 in the sofa bed. The others sleep 5 - 2 in the bed, 2 in the sofa bed and one in the murphy bed. I don't know how many people are in your two cabins, but if it's more than 4, it might not work.