Hi I am interested in your Santa Cruz, is it still available?
Yes, still available! Are you interested?
I am but the price is a little too high for me. Would you be willing to lower your price?
I would be willing to lower it. What is your offer? 
I have 2400 dollars, could you work with that price?
I am in financial trouble so I am in a very tough spot currently. Is there any way you could do 2,550?
I can do $2550 if you would be able to deliver it for me?
Delivery is not a problem. It was great doing business with you, consider it sold!