听力原文：M: Have you ever heard of a machine that sells tickets? W: Yes. I've seen them in bus and subway stations. M: But I mean a single machine that sells all kinds of tickets, located in public areas just like an ATM. W: What do you mean by 'all kinds of tickets?' M: Air tickets, bus tickets, subway tickets, railway tickets, tickets for tourist attractions, and so on. W: Well, that sounds fantastic! But is it easy to use? M: Very simple. Yesterday I bought my air ticket for my trip to Shanghai from such a machine. W: How did you do it? M: Well, I first pushed the 'Air Ticket' button, typed in my destination and the time I wanted for my flight, and several choices appeared on the screen. W: What kind of choices? M: Flight numbers from different airlines that were suitable for me. W: I see. What did you do then? M: I made my choice of flight and put in my bank card, and guess what had happened? W: What? M: In less than a minute, I got my air ticket. Q6. What are the two speakers talking about? (14)