A: Good morning. I’d like to buy a train ticket.
B: Good morning.                   ?
A: I’m going downtown, to the theatre.
B: Alright, you’re going to take the orange line.
A: Great!                     ?
B: The next train will leave in about 20 minutes.
A: Okay.                  ?
B: It’s $30.
A: I’ll take one.                   ?
B: Yes, you can take the box as long as it weighs less than 50 pounds.
A: That’s fine. There’re only several books in it.
B: You can just wait on those benches. Someone will call your train in 20 minutes.
A:                   ! You’re so kind.
B: You’re welcome!