售票员的英文是 "ticket seller"。这个词来源于英语中的 "ticket" 和 "seller"，"ticket" 指的是门票，而 "seller" 指的是卖东西的人。例句：

Can I buy a ticket from the ticket seller?

The ticket seller at the train station was very helpful.

I need to talk to the ticket seller about my reservation.

请注意，售票员在英语中也可以用其他一些词来表示，比如 "ticket agent" 或 "ticket clerk"。例如：

The ticket agent was able to resolve my problem.

I had to wait in line to talk to the ticket clerk.