Hi, I would love to buy the chair.  WOuld you be willing to take $45?  I can't pay the full price because I am short on cash right now.  Do we have a deal?
Hi. I'm glad you like it. It's an antique, and we've loved owning it. I'm a negotiator just like you, and in the spirit of that, I'll take 50 and it's all yours.
Okay that's great!  $50 and we have a deal! Thanks!
Cool, bye.