Thanks for the response. That is quite interesting. Maybe X is making more of a push to bring bookings back inside than CCL is at the moment?
I also pay a couple weeks in advance to make I don't miss the date, but it never occurred to me that it might not be evident on the booking. I am also pretty anal about verifying these things, so I'd be annoyed if I couldn't see the info myself. I guess score one for Carnival... for once...