man, it's a steal i tell you. almost half off the original price. it won't last 
Hi, I am interested in the phone.  My phone screen got cracked and it needs to be replaced, so I am just trying to buy a new phone instead.  How about $100?
whoa, hold on there cowboy. that's way too low. you won't find  cracked phone for that low. the lowest i can do is... 300
Could you throw in a wireless charger, plus I give you my old phone for $200? You could sell that phone for parts for even more money I'm sure.  Deal?
tell you what I can give you the charger, but i really can't do lower than 300, you can sell your old phone first. get the money and then come back 
Okay. How about $275?
how about.. 290
Okay deal!