Long lost uncle

I had the strangest dream last night...I received a handwritten card in the mail, addressed to me from a european address. Inside, the card read "Cher Suzan, please join us in celebrating my 80th birthday...Uncle Joe" Included was a boarding pass and cabin number for a cruise leaving from France(?) in 2 months time. Instructions indicated that all cruise expenses were covered by Joe except airfare. WOW! But of course, I don't have an uncle Joe. Do I go anyway and pose and the north american relative, the card was addressed to me in eighty-year old cursive... what would you do?

Too bad it was only a dream...