[speaker001:] How much is the fare?
[speaker002:] Three yuan.
[speaker001:] Could you tell me how to use it?
[speaker002:] You put it in the slot at the turnstile and then push the turnstile to get into the platform.
[speaker001:] Oh, I see. By the way, how can I get out of the platform after I get off the train?
[speaker002:] That's very easy. The exit is always open.
[speaker001:] Thank you for your help.
[speaker002:] My pleasure.