hi
Hey get this great car today before it is gone!
it looks good, is it in good condition? 
It is in great condition. It has 53K miles on it. 
I can offer you 15,000 in cash today if you are interested.
You have that all in cash?
yes, I own a string of self-serve car washes. I assume small bills are okay?
That is fine. I will gladly take your offer then!
so 15,000?
Works for me