Hi! I'd like to buy the bike but the asking price is a little too high for me.
OK, just want to let you know it is new, can come assembled or in the box. Would $48 work?
Still asking too much. Is there a way we could do about $30? What if I come drive to you and pick it up?
I can deliver free of charge if you can pay 40
Is there anything extra you could provide along with the bikes? 
I can give you the basket I also bought for the front of the bike
I'll do it for $40 if you include the basket.
Great!