F: Oh dear, well, it looks like we have a few rooms available. Can I put you in to a room on 17th floor? It has a balcony and it doesn't face the highway.

M: Ok, that would be very nice! What do I need to do to transfer?

F: Let me check you out of your old room, you have to sign here, and acknowledge these changes and also the charges for your previous room. Then I can hook you up for room 1780.

M: Hmm, I don't think the charges are right, can you explain them please?

——哦，天哪。。。看来我们还有几间空房。我把你安排到17层的一个房间可以吗？那有阳台，而且也没有对着高速公路…

——好的，那太好了。我需要办理什么退换手续？

——我帮你把旧房间退掉。您需要在这里签字，确认这些调整，还要支付以前的房间费用。然后我直接帮您调换到1708房间。

——恩…我认为这些收费是不对的，请你解释一下好吗？