text: Emma: How much for the red skirt?
  Aubrey: 30 dollars
  Emma: I'll give you 20 for it
  Aubrey: The original price is 140, sorry, no way
  Emma: 25?
  Aubrey: Non-negotiable
  Emma: Okay do you offer free shipment?
  Aubrey: Yes
  Emma: 30 is fine then!
target: Emma has bought the red skirt from Aubrey for 30 dollars.