Hey! Good evening! 
hey
I see you are interested in my trainer set, also known as the bike thong! Its in great condition and listed at a super fair price. Probably gonna be gone pretty quickly!
I would like to buy at $140
Ehh, I appreciate the offer but I was thinking closer to at least $210
Actually I'm looking something within $150
If you can meet me at $160, I'll throw in a free spare tire and a Trek frame!
Oh so nice of you. Can u give me  at $155