Hello! Are you interested in the bike?
i am very interested in the bike. i'm 6'4 most bikes are pretty small for me, but this seem perfect. tell you what, I'll give you 200 bucks cash, right now, today 
I think this bike would be the perfect size for you and if you are willing to go to $210, I will have it delivered to you and throw in a helmet.
you know what? You drive a hard bargain. you got a deal. 210, helmet and you get it to me. sounds good