Dialogue 1
A: Excuse me, I want to buy two 1) ______ to Shanghai today.

B: OK,when do you want to travel?Morning, or afternoon?
A: Morning. As soon as possible, please.
B: Seats or sleeper? Or CRH?
A: I think sleeper is OK.

B: One moment, please. 2) ________cushioned berths and cushioned berths are sold out. How about CRH?

A: Oh. I will take CRH then, I thinkthe second class ticket is OK.
B: Sorry, second class tickets are fully 3) _________, only the firstclass ticket is available now.

A: OK! Give me two first class tickets,hear are our ID cards.
B: OK, 836 yuan in total, please.
A: Here you are.

B: Here are the tickets, your 4)__________and ID cards.

A: Thanks.
B: Next.