Hello, you are interested in the ad for the sofa set?
Yes I really like it can you tell me more about the set?
Sure, this is a 2 piece set. We've got the sofa and the chair as pictured. You saw the dimensions in the ad I assume? The sofa is 94 inches across and the chair is 38 inches. I would be willing to take $1250 for the pair.
I really like it but could offer you $600 and I will come and pick it up myself and provide my own truck
Understood, but that's pretty far below what we paid for it and I know the sofa alone is worth more than $600. 
Ok I understand that is a low offer but the condition does not look that great. how about $750
The condition is actually very good. The set has been in a smoke free home and has seen very little wear from use.  I could go to $1100.
that is still quite high can we agree on $1000 
I could do $1,000. Do you have someone who can help you with the pick up?
yes I have a friend who will help me and he has a pick up truck $1000 it is then