Most cruise lines allow you to transfer your bookings from the cruise line to a travel agent. They will normally allow you to transfer the booking within a window from when the booking was created.
Carnival Corporation
Carnival Corporation allows you to transfer a booking to a travel agent up to 90 days from the booking date, as long as the request is made outside of the final payment period. You can find more information on Carnival's Carnival's website.
The cruise lines under the Carnival Corporation are
| Cruise Line |
|---|
| Carnival Cruise Line |
| Costa Cruises |
| P&O Cruises |
| Princess Cruises |
| AIDA Cruises |
| Cunard |
| Holland America Line |
| Seabourn |
Norwegian Cruise Line Holdings
Norwegian Cruise Line allows you to transfer a booking to a travel agent up to 14 days from the booking date, as long as the request is made outside of final payment period. You can find more information on NCL's website. The transfer form can be found at here
The cruise lines under Norwegian Cruise Line Holdings are
| Cruise Line |
|---|
| Norwegian Cruise Line |
| Oceania Cruises |
| Regent Seven Seas Cruises |
Royal Caribbean
Royal Caribbean Group allows you to transfer bookings made through their direct channels (Web, Onboard, Consumer Outreach) to your travel agency up to 30 days from the booking date. The transfer request must be made outside of final payment period and the booking cannot have been paid off in full. You can find the transfer page and more information on Royal Caribbean's website.
The cruise lines under the Royal Caribbean Group are
| Cruise Line |
|---|
| Royal Caribbean International |
| Celebrity Cruises |
| Siver Cruises |