Good morning.  Can you tell me about the mountain bike you have listed?
Sure. Shame to let it go because of how much I love it, but it's great if you wanna go downhill. It has a raceface handlebars and stem evolve, WTB seat, moto and cranks and Maxxis high roller tires.
How long have you owned it for?   Are you the original owner?
That's right. It's mine only, and I've owned for about a few months give or take, so it's not in the worst condition at all. How much are we willing to negotiate?
Well, $800 is a bit higher than I'm willing to pay, but would you be willing to consider an offer of $650 if I were to come and pick it up?  Might save you a little bit of hassle....
That s a lot lower than I hoped it would be. I want to sell it for $775 because of how close it is to that of a brand new bike in terms of quality.
Hmmm....How about $725?  
How about 750? $25 extra shouldn't be too far of a stretch from your current offer, no?
Yeah.  OK.  I'll do $750 if you're willing to deliver it to me.  How about that?
I'm willing to deliver to you! Sounds good to me!