求个英语对话

You: Good morning, sir.
P：Good morning, oh, you don't look good.
You: No,i don't. i feel terrible today.
P: What's wrong with you?
You: I think i have caught a bad cold and i need to go to see a doctor.
P: Let me see. Er, I think you should go as soon as possible.
You: So i come here for a leave.
P: Ok, I know that. Wait a minute...Here is the leave certificate.
You: Thank you, sir.
P: That's ok. Go to hospital at once and take a good rest. You don't need worry about your lessons. Just stay home till you get well.
You: I get it. Thanks very much.