预定机位：

1. I'd like to make a reservation for a flight from New York to Boston on Nov.28th.

2. Could I get my seat assignment?

3. I'd like a window seat.

4. I'd like in the non-smoking section.

5. I prefer to sit by the window.

6. Do you have a seat on the flight after that?

翻译&解析：

翻译：

1. 我想预定十一月二十八号从纽约到波士顿的班机。

2. 我可以指定座位吗？

3. 我要一个靠窗的位子。

4. 我想要无烟区的座位。

5. 我想坐在靠窗位置。

6. 下一班飞机有位子吗？

解析：

1. window seat 是靠窗的座位，aisle seat是靠走道的座位

2. one-way ticket 单程票，round-trip ticket是双程票

3. 三种机位的等级为：first class 头等舱；business class 公务舱；economy class 经济舱

其他常用的问句：

1. What's the department time? 起飞时间是什么时候？

2. What time is the flight scheduled to leave today? 那班飞机今天何时起飞？

3. What's the check-in time? 何时开始办理登记手续？

4. How long does the flight take? 要飞多久？

5. Is this ticket refundable？这张机票可以退票吗？

租车：

1. I'd like to reserve a car for next Monday. 我想在下周一预定一辆车。

2. How much do you charge for renting a car? 租一辆车要多少钱？

3. I'd like to keep the car for one more day. 我要多租一天车。