I'm interested in the Privateer you're selling.  What can you tell me about it?
It's in mint condition with little use, only a few scratches. Very collectible. 
How are the tires and brakes?
It has XT shifters and a brake lever combo
I'm interested.  Would you be willing to take $200 for it?  I can pick it up today with cash in hand.
$350 Is the asking price, the bike is in mint condition with an upgraded Judy fork. If be willing to deliver it. 
I can't do $350.  The rods went out on my car, and I'm looking for a bike to ride to and from work to get it fixed.  I can go $250 if you throw in a helmet.
325 is what I can go to, I bought this bike from original. Gas is expensive too if I'll be delivering it to you.