Hi are you interested in buying my car?
Yes. It looks great. How much do you want for it?
I'm asking 12,000 but it is negotiable
How does 5500 sound? That is within my budget. 
It sounds way too low.  If you come up some more I'm sure we can meet in the middle somewhere.
How about 8000? That seems like a good meeting point for us.
I think we can meet more at 9000.  I just put 4 new tires on it.
8700 and not a penny higher. How does that sound to you?
Well...you will have to pay for the title transfer, plates and pick it up.  I guess we can do 8700.
How bout we go to 8800 then?
You're only 200 away from the 9000 I was asking!!!  
Okay. 9000 it shall be. It is worth it.
Yes, it is worth it.  You've got a deal!
Nice doing business with you. I agree to 9000.