旅游英语口语就该这么说:第33期 预订机票 航班已满

I'm afraid that all the flights of September 12th are booked. 很抱歉，9月12日的机位已满了。

How about September 13th? 那9月13日的呢？

It's fully¹ booked at the moment. 现在都订满了。

I'm very sorry, but the flight is completely booked. 实在抱歉，那趟班机全部订满了。

I can put you on a waiting list if you would like. 如果你愿意，我可以把你排在等候名单上。 

I'll just check to see if there have been any cancellation². 我会来查一下是否有取消预订的。

1 fully   

adv.完全地，全部地，彻底地；充分地

参考例句：

• The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气，然后全部呼出。
• They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。

2 cancellation   

n.删除，取消

参考例句：

• Heavy seas can cause cancellation of ferry services.海上风浪太大，可能须要取消渡轮服务。
• Her cancellation of her trip to Paris upset our plan.她取消了巴黎之行打乱了我们的计划。