A: Could you help me please?

B: D Of course. What's the matter?

A: I don't know how to use this machine.

B: H Well, firstly, you need a one pound coin.

A: I haven't got one.

B: A No problem. I have. Here you are.

A: Thanks. That's really nice of you.

B: F Now, what drink do you want?

A: I just want a black coffee.

B: I Next, find the picture of black coffee and check the number. What is it?

A: It's two-five-three.

B: C Okay, put your coin in here and then press two-five-three and the coffee will appear.

A: Ow! It's hot.

B: E Never take it away too soon or you'll get boiling water over your hand.

A: You can say that again. That was really hot.