conversations.from: human
conversations.value: There's an online sale where you get $10 for every $100 that you spend. If you make a purchase of $250 before discounts, how much did you end up paying?
conversations.from: assistant
conversations.value: If for every $100 spent I save $10, then for $250 spend I'd save $10*2=$20
  If my total was $250, then I ended up paying $250-$20=$230