text: Henry: I wanna ask about the offer
  Fiona: Hello, I'm Fiona. How can I help you?
  Henry: can you tell me the detials about the black friday sale
  Fiona: Certainly, You get 20% off on the first item, 40% on the 2]secound item and 70% off on the third item
  Henry: What about the 4th?
  Fiona: The sale only pertains to the first three items that you buy
  Henry: ok, which items though? there has to be a hook
  Fiona: I don't understand
  Henry: Like it has to be the 3 least expensive items or something like that
  Fiona: If you buy more than 3 items the sale will only pertain to the 3 least expensive ones
  Henry: Ha! knew it!
  Fiona: and the sales will be added on to the items according to price, from hte most expensive item to the least expensive one
  Henry: well that sukcs 
target: The offer Henry is interested in concerns only 3 least expensive items.