Hey there, I see you are interested in my lincoln?
Yes could you tell me more about it? What is the mileage on it and is it in good condition? How does it run?
The car only has 40,000 miles. I am the only owner as well, when I bought it from the dealership I included just about everything from aloy rims to a backup camera. 
Oh that's nice. The listing says it doesn't have a backup camera I didn't know that. Are you firm on the price or are you willing to negotiate?
I have dropped the price once already, but if I can get you in this car, we might be able to make a deal. What were you looking to spend on it?
Well I'll go to 3200 since you say it has a backup camera.