Dialogue 1
P:    Please tell me why the ticket doesn't come out?
      我想知道为什么票没有出来的？
S:    Maybe there is something wrong with the machine. Don't worry. Let me check it for you. I will call the repairman. Please wait a moment.
      可能是机器出故障了。别担心，让我来帮你看看。我请维修人员来检查一下，请稍等。
Dialogue 2
P:    What happened? I can't get through the gate.      怎么回事？我出不了闸。
S:    You are going in the wrong way.                您走的是错误路线。
S:    Use your right hand to hold the ticket when exit. The ticket is only valid for the date of issue.                  您应该用右手持票通过检票机。售出车票仅限当天使用。
Dialogue 3
P:    What happened? I inserted the ticket but I can't exit.
      怎么回事？我投了票，可是我出不去。
S:     Let me check it for you. There is something wrong with your ticket. Let me help you. Ok now.                 让我帮你看看吧。你的票有问题，让我帮你。现在好啦。
Dialogue 4
P:    Why did I insert coins but no ticket comes out?
为什么我投了币，却没有出票？
S:     Don't worry, we will offer you a single-journey ticket for free.
别着急，我们会给您提供一张免费的单程票。