Hello, I'm interested in your Jeep, can you tell me more about it?
It is in great condition. I bought a new car and just don't need it. Everything runs and looks great
That's good. Would you be willing to lower the price just a bit?
maybe a little but that's a great price on it already. 
How does $4050 sound?
I could do $4200. I do have an extra set of tires and rims I was going to put on this winter. I could through those in.