Hi, I'm interested in your indoor bike
Great, it is in excellent condition. I had a leg injury and I really couldn't use it after I bought it.
Oh I'm sorry to hear that, I wondered if anything is wrong with it.  So it is in working order and you just can't use it due to your injury?
Yes, there is nothing wrong with it at all. I have all manual for it also. I also can put the mat that I bought to go under it with it. I'd like to get $150
Oh, I must have read the ad wrong I thought you were asking $125?  So is your price negotiable at all?
Oh, I'm sorry I forgot that I changed my mind at the last second and listed it at $125. They are 319 originally.
Oh ok, would you come down to $75? I have cash and could come get it tonight.
I can't go that low. I would come down to $135 if you pick it up tonight but no Mat.
That is more than your ad says...I could do $100 and  I don't need the mat. 
Sorry, that was supposed to be $105.00. I'll go $100.00. See you tonight then.