Sam: How come you don't want to go?
Diane: Oh, I do. But Frasier's out of town and I can't think of anyone I'd like to go with.
Sam: Oh. I guess Frasier would feel uncomfortable if you and I went, huh?
Diane: No, actually he suggested it.
Sam: Oh. So, you'd be uncomfortable, huh?
Diane: Not at all. While you still harbor tortured longings for me, the emotions are so completely unreciprocated. I don't see why we shouldn't go together.
Sam: Then it's a date.
Diane: No, not a date. I mean not a date date. Well, it's a... What would you call an evening out with a woman when you have absolutely no hope of physical involvement whatsoever?
Sam: A first.