Here is some wording I have collected in my searches for STD's. I hope some of these help or at least get your creative juices flowing:
"On board" Adults___ Children___
OR Passengers
___ "will be there to celebrate"
___"will be toasting from afar".
___Yes, have a Margarita ready!
__No, I sunburn easily!
____ We'll see you on the beach!
Please Sea if you can respond...
____ You beach ya we'll be there!
____ Sorry, must wave your invitation.
___ ¡SÃ! Have a margarita waiting.
Yes, you beach ya we'll be there!
No, we're all tide up and we must wave your invitation!
__ Yes, we have our swimsuits and dancing shoes packed!
___ No, can't make the trip but wishing you well