Can I help you?
Is this the right subway to the Wall Street?
Yes, it is.
Could you tell me shall I take the express or local train?
Sure. The local train. It stops at every station.
Which of them is the local train, please?
You take the D train on the downtown platform, and go three stops.
How much is the fare?
One dollar and twenty cents. You give me the money and I'll exchange it for a token.
What should I do with the token?