Where can I report a missing baggage?

行李遗失到哪里去报告?

You may go to the Baggage Service and fill out a claim form.

你可到行李服务处，填写一份申报单。

Could you describe your baggage?

您能描述一下您的行李吗?

It is a medium-sized brown leather suitcase.

我的行李是一个中型的棕色皮箱。

I lost my checked suitcase.

我丢了一只托运的箱子了。