Hi are you interested in the house?
Yes, I am.
Great do you have any questions about it?
Well, do you know how many square feet it is?
I don't exactly know the square feet but I can definitely let you know that ASAP. 
Sure. Seems like the sort of thing somebody renting a house would know, but I guess you must have just forgot to fill it in on the listing. Anyway, are there any problems with the house, besides the fact that it's right next to the freeway?
Yes, I will definitely put that on the list its definitely missing that information. Thanks for pointing that out to me. No, there are no problems with the house at all. It is very well located and the area is great!
Well, then let's get down to brass tacks. I see you listed it at $1000, but I think we can come to a better price for both of us.
Sure I am all here to negotiate so we both are happy! Go ahead!
Well, how about $800
That's acceptable to me! When can we sign the deal?
Well, how about tonight? Let's meet at the house, maybe check out the bedrooms?
Sure thing tonight it is! 
All right, I'll be the guy in a leather body suit standing out front :)