B: Yes, I would be happy to help. What do you want to buy?

A: I want to buy that candy.

B: OK. So this machine will make change if you need it. Do you have your dollars ready?

A: Yeah, so far, so good.

B: Next, you feed your dollars into the machine in the slot. Make sure they are smooth.

A: Yeah, I already knew that.

B: I'm sure you know that if the dollar gets stuck, you might have to re-feed it.

A: OK, let's move on!

B: Now you just make your selection and pray. If nothing comes out, try again or call the number on the side of the machine.

A: I hope it works!

B: Well, good luck!