Hello! Are you interested in the bike?
Yes, is there anything wrong with it?
The bike itself is in fine condition. A few things were left out, though. There are no pedals, and a few other accessories are missing. 
Given that information, the most I could offer is $1000
If you can give me at least $1500, I'll purchase all of those lost accessories and deliver the bike to you myself.
Okay. I could do $1100, without the missing accessories and pick up the bike.