I have Southwest Points that I will never use. I am considering transferring those points into a Carnival Cruise gift card through the "More Rewards" program. I cannot find in the terms and conditions and I want to confirm before purchasing:

Can Carnival Cruise gift cards can be used toward the PURCHASE and booking of a cruise? I'm not interested in the "on-board credit" account only on purchasing a cruise.

Please help me understand more about how these gift cards can be used. Thanks so much in advance!