Lady: How much is it?
Me: It's $15 per person for 20 minutes.
Lady: So it's basically $20 a person then. And how long is it?
Me: It's about 20 minutes.
Lady: And where does it go?
Me: It covers about a mile of downtown.
Lady: Oh ok. And it's $15 a person, right?
Me: Yes.
Lady: For how long?