At which end are sleeping cars?

卧铺车厢在哪头？

There are dining cars and sleeping cars in both trains.

这两趟车都有餐车和卧车。

How many sleeping cars are there on this train?

这辆列车有多少卧铺车厢?。

If you are buying tickets for sleeping cars , a limited express or reserved - seats , you will need to fill out forms in advance

但有一部分的卧铺列车、特急票和座位指定票等则需要事先填写好表格。