换登机牌 To take the bording check

A：您一共几件行李？
How many pieces of luggage do you have?

B：两件，那个托运，这个随身。我想要一个靠窗口的座位。
Two.That one is consigned and I'll take this one with me. I want to take a seat near the window.

A：好，这是您的登机牌。
OK.This is your boarding pass.

B：谢谢！
Thank you!

安检口 At the security check

A：请从这儿过去。
Please come this way.

（机器报警）
(The alarm gets out.)

B：怎么了？
What's the matter?

A：您兜里还有东西吗？
Is there anything in your pockets?

B：有一串钥匙，一个指甲刀。
A string of keys and a nail clipper.

A：先放我这儿吧，您过去还给您。
Put them here. I will return them to you affer you pass through it.

B：好。
OK.

登机口 At the boarding gate

A：对不起，您的行李太大了，为了乘客的安全，我们帮您办一下托运手续。
Sorry.Your bag is too big. For the passenger's safety we have to consign it for you.

B：好吧，麻烦您了！
OK. Sorry to bother you!