你可以更改你预订的机票。
A Do you have a preference for your return flight?
A 对于返程您更喜欢哪个时间？
B Well, if I book for Sunday, can I change my reservation later?
B 哦，如果我预订了周日的航班，我后面能更改吗？
A Yes, sir. You can change your flight reservation at any time.
A 可以，先生。你可以在任何时候更改你预订的机票。
B And is there a penalty? Do I have to pay extra?
B 更改的话有罚金吗？我是不是得额外付费？
A Let me check. No, sir. Not on this flight.
A 让我看看。不，先生，这个航班不需要。
B Right, then. Make it Sunday.
B 那么，好的。就定周日的航班了。
Notes注释
1 Travel plans can change. You may want to ask about making changes to reservations: Can I change my reservation later? / Can I change my reservation later?: And is there a penalty? / And is there a penalty?
旅行计划可以更改。你可能要问有关更改预订的情况：Can I change my reservation later? /我后面能更改吗？: And is there a penalty? /更改的话有罚金吗？
2 To give information about changing travel plans, you can say: You can change your flight reservation at any time. / You can change your flight reservation at any time.
要给出有关更改旅行计划的信息，你可以说：You can change your flight reservation at any time. /你可以在任何时候更改你预订的机票。
Key phrases and sentences
Do you have a preference for your return flight?
Well, if I book for Sunday, can I change my reservation later?
Yes, sir. You can change your flight reservation at any time.
And is there a penalty?
Do I have to pay extra?
Let me check. No, sir. Not on this flight.
Right, then. Make it Sunday. 对于返程您更喜欢哪个时间？
哦，如果我预订了周日的航班，我后面能更改吗？
可以，先生。你可以在任何时候更改你预订的机票。
更改的话有罚金吗？
我是不是得额外付费？
让我看看。不，先生，这个航班不需要。
那么，好的。就定周日的航班了。