Restaurant pick...

Ok so on date with guy #2, we chatted about this restaurant that I once saw him at. It's a great place to go on a Saturday afternoon. And apparently, I may rack up date numero tres this weekend, in which I am supposed to show a new kid around town. I say this because he is

a) younger than me
b) Canadian
c) studying to be a dental hygenist (Nothing wrong with that. Just a fact...)

So my question is, how inappropriate is it to casually ask Date #2 to remind me of the restaurant name, so I can then suggest it to date #3? I mean, nothing wrong with a little American hopsitality, eh?