3 sentences

1. 头等舱在飞机前部。

   tóu​děng​cāng zài fēi​jī qián​bù.

   First class is in the front of the aircraft.

   Source: CCMatrix

2. 我是头等舱乘客。

   wǒ shì tóu​děng​cāng chéng​kè.

   I'm a first-class passenger.

   Source: OpenSubtitles

3. 从旧金山到新加坡头等舱机票可以花费29000美元以上。

   cóng jiù​jīn​shān dào xīn​jiā​pō tóu​děng​cāng jī​piào kě​yǐ huā​fèi29000 měi​yuán yǐ​shàng.

   A first-class ticket from San Francisco to Singapore can cost $29,000 and up.

   Source: CCMatrix