Please answer the following question: Given the question "What does the shop offer if one changes a battery there?" and the answer "One-year guarantee.", write a conversation that might have happened.
A:
W: Excuse me, my watch stopped running, and I am not sure what's wrong with it.M: Well, let me look at it. Hmm, it seems that it just needs a new battery.W: Oh, that's really. I got some water on it last week and I was afraid that it might ruin the watch.M: How much is a new battery?M: It's 6.99, and we not only change a battery but also guarantee it for a year. And if you have the watch cleaned here, we can guarantee it for an additional three months.W: That sounds like a good deal. I'll get my battery here. When will it be ready?M: Usually I can do it right away but now I'm repairing lots of watches and I am way behind. Can you leave your watch here until 5 PM?W: Okey, see you then.