Oh, great!  I take it you're interested?  It's a great phone.
Hello! I'm interested in the Casper mattress you posted...
Outstanding! it is fairly new and I would love to pass it on to a new user
Awesome!  I'm moving into a new place and would love to upgrade my mattress.  I was curious, though -- are you open to negotiation on the price?  It's a little out of my budget.
I am open to negotiating the price. I am fairly flexible and willing to give you a good deal
Oh, fantastic!  Would you be willing to go down to $150?
Hello! I'm interested in the Casper mattress you posted...
I have a lot of memories on this bed, would you be willing to try for $200?
Awesome!  I'm moving into a new place and would love to upgrade my mattress.  I was curious, though -- are you open to negotiation on the price?  It's a little out of my budget.
Hm, that's still a little higher than I was hoping.  Would you come down to $175?
$185 and I'll be able to take my family out for dinner! ?
Oh, fantastic!  Would you be willing to go down to $150?
I can do that...if you're willing to deliver it at my place on your way to dinner!
That sounds like a deal to me!