conversations.from: human
conversations.value: Solve the math problem: Joseph wants to go to Boston for a road trip. If he takes route A, it will take him 5 hours to arrive; but if he takes route B, it will only take him 2 hours to arrive at his destination. How much time will he save if he takes route B to Boston and back to his home?
conversations.from: assistant
conversations.value: He will spend 5 x 2 = 10 hours if he takes route A.
  Meanwhile, he will spend 2 x 2 = 4 hours if he takes route B.
  Therefore, Joseph can save 10 - 4 = 6 hours if he takes route B both ways.