Update... Carnival, Princess, HA, Royal Caribbean, Celebrity and Norwegian all have updates to include the same policy. Celebrity even states that does from different manufacturers would not be ok (so no moderna/pfizer)
I am unable to get another dose at this time, as there are those I Canada (and the world) that still need their first dose. It would be greedy for me to demand a 3rd dose just because I wish to travel. We have to register online, so my file would have me as fully vaccinated... so no 3rd dose.
Hoping for the policy to be changed in time for our cruise... otherwise my son will go in my place as he will have 2x Pfizer.