A: I want to buy two one-way tickets to London, please.
B: Today we have a train leaving at 3:30 this afternoon.
A: Is it a non-stop train?
B: Yes. There's no need to change.
A: When can it reach London?
B: You will be there at 2:30 a.m.
A: Does this train have sleeping berths?
B: Yes, it does.
A: Two lower bunks n soft sleeper, please.
B: There are no lower bunks left.
How about upper bunks?
A: Well, that's OK.
B: Please show me your ID cards.
A: Here you are.
B: OK. Wait a moment. Here are your tickets.