conversations.from: human
conversations.value: This math problem has got me stumped: Carrie wants to take a trip to New York. She can get a 20% discount on an $850 flight with Delta Airlines. She can also save 30% off an $1100 flight with United Airlines. How much money would she save by choosing the cheapest flight?
  Can you show me the way?
conversations.from: assistant
conversations.value: The discount for the Delta flight would come to $850 * 0.20 = $170.
  The final price of the Delta flight would come to $850 - $170 = $680.
  The discount of the United flight would come to $1100 * 0.30 = $330.
  The final price of the United flight would come to $1100 - $330 = $770.
  The Delta flight would be cheaper than the United flight by $770 - $680 = $90.