At the Booking-Office

Clerk: Hello. Can I help you?

Passenger: Hello. I want a ticket to London, please.

Clerk: Okay. One ticket?

Passenger: Yes, one ticket, please. How much is it?

Clerk: It is twenty-five pounds.

Passenger: Okay. What time does the train go?

Clerk: The train goes at ten o'clock.

Passenger: And what time does it arrive in London?

Clerk: It arrives at twelve o'clock.

Passenger: So it is two hours?

Clerk: Yes, two hours.

Passenger: Okay, great. One ticket, please.

Clerk: Here is your ticket. Have a good trip.

Passenger: Thank you. Goodbye.

Clerk: Goodbye.