What To Do?

A business card found its way into my hands today as a customer left the restaurant. A message was scrawled on the back:

I'm in Toronto until June
1st for work - would love to
go dancing/music/?? -
call me.
Marriott Courtyard rm ####,
Yonge and College.
I don't do this with everyone -
you seem really sweet.

What should I do?