谁能帮我写 一个关于 在4S店的英语对话 给分啊

(sale's man): Can I help you? sir.
(Customer): I'd like a AUDI A6 2.0T
with roof window and leather seats.
S: all right, there are 4 colors for your
choice. they are black, white, milky
and silver.
C: I like black one.
S: OK. I'll prepare a set of contracts.
Before signing them, I need your
credit card for authorize.
C: waite a moment please. what's the
price?
S: 4 hundred thousand yuan for total
include tax, interest by 60 monthes
and 40 thousand down payment.
C: No. It is too dear. how about 350
thousand? It is work?
S: No. We can't. If like this, the down
pay should be 50%.
C: I'll take one if you do me some favour.
S: well, reduce 50 hundred for your favour
that is.
C: All right, we make deal.