实用主题句：
您好，请问您今天飞哪里？
Hello sir, where are you flying?
能给我一下您的护照和机票吗？
Can I get your passport and ticket, please?
您想要靠窗坐还是靠走道呢？
Would you like to sit at the window or the aisle?
如果可以的话，我更想坐靠近走道的座位。
I think I prefer the aisle seat if it's possible.
您有行李需要托运吗？
Do you have any baggage to check in today?
麻烦您把行李放到传送带上。
Please place your baggage on the belt.
恐怕您的行李超重了。
I'm afraid one of your bags is overweight.
您需要补超重行李的费用。
I will have to charge you for the extra weight.
场景对话：
Good morning, sir. What can I help you?
Morning. I'm here to check in.
Okay. Can I get your passport and ticket, please ?
Here you are.
Are you taking the flight to Paris, Mr. Cooper?
Yes. By the way, I'm Dr. Cooper.
Okay. Dr. Cooper, would you like to sit at the window or the aisle?
I think I prefer the window if it's possible.
No problem.
