Maybe a question for the Singles and PWP section of the forum? I'm sure Carnival has dealt with two single cruisers booked in the same cabin but wanting seperate charges. If not, then maybe this would have to be settle on a case by case basis by going to the pursers desk? If they can establish a seperate charge account for each person's S&S card, then the only other room charges would be the towels and minibar usage. Anything else would be charged to that persones sign and sail card "folio" number (unless their system doesn't allow for two folio numbers to a cabin???
Carnival Cruise Lines:
Fantasy 90, Celebration 95, Victory 05, Conquest 05, Spirit 6/06, Freedom 6/08, Holiday 7/08, Victory 6/09, Valor 9/09, Dream 6/10, Splendor 8/10,Conquest 8/11,Magic 11/11,Triumph 4/12,Spirit 7/12,Freedom 11/12, Triumph 2/13 - The fire cruise
NCL Dream October 2006, RCCL Mariner OTS June 2007, Celebrity Silhouette 2013