conversations.from: human
conversations.value: Dakota and Ben order eggs for $3, pancakes for $2, and 2 mugs of cocoa for $2 each. The tax is $1. Later, Ben then decides to order 1 more batch of pancakes and 1 more mug of cocoa as he is still hungry. How much change should they get from $15?
  Solve this problem.
conversations.from: assistant
conversations.value: The cost of the food is $3 + $2 + $2 + $2 = $9.
  The original total cost, including tax is $9 + $1 = $10.
  Ben increases the total cost to $10 + $2 + $2 = $14.
  They should get $15 - $14 = $1 in change.