conversations.from: human
conversations.value: Michael has $50. He wants to surprise his mom on Mother's day by buying a cake for $20, a bouquet for $36, and a set of balloons for $5. How much more money does Michael need to buy all those?
  Give me a clear explanation.
conversations.from: assistant
conversations.value: Michael will spend $20 + $36 + $5 = $61.
  So, he needs $61 - $50 = $11 more to buy all those for his mom.