我需要一个英语对话，简单一点就好。

Waiter: Good afternoon, gentlemen. Do you have reservation?
A: Yes, I booked a table yesterday under the name Jason Brown.
Waiter: Oh, yes, this way, please. What would like for dinner?
A: I’d like today’s special. What about you?
B: I prefer a seafood soup, a vegetable salad, and spaghetti.
Waiter: Just wait a moment.
…
A: The soup smells very fresh, how about salad?
B: Let me have a try. Oh, no! The salad smells terrible.
A: Waiter!
Waiter: Yes, sir?
A: Please fetch your manager! I’ve got something to complain!
Manager: What can I do for you, sir?
B: There’s something wrong with the salad. How can you serve such kind of decayed food?
Manager: Let me see. Yes. I’m sorry about it. The dish will be changed and we’ll refund you half the price.
B: All right. I hope this will not happen again.
Manager: Yes, sir. I promise you and I’m looking forward you coming next time.
不知道你是什么年级的学生，要是能够提供具体信息，我就可以更好的理