conversations.from: human
conversations.value: I'm completely lost with this math problem: Hallie is working as a waitress for $10/hour. On Monday, she works for 7 hours, and she receives $18 in tips. On Tuesday she works for 5 hours, and she receives $12 in tips. On Wednesday she works for 7 hours, and she receives $20 in tips. How much money does she earn in total from Monday to Wednesday?
  Can you give me a hand?
conversations.from: assistant
conversations.value: Hallie works a total of 7 + 5 + 7 = 19 hours
  For her hourly pay, she earns 19 * $10 = $190
  In tips, she receives a total of $18 + $12 + $20 = $50
  The total amount of money Hallie earns is $190 + $50 = $240