conversations.from: human
conversations.value: I need help with this problem:
  Keesha wants to get her hair and nails done for prom.  Hair updos cost $50 and manicures cost $30.  How much will these two services cost her with a 20% tip for each beautician?
conversations.from: assistant
conversations.value: Tip for the hair stylist will be $50 x 20% = $10.
  Tip for the manicurist will be $30 x 20% = $6.
  Total tips will be $10 + $6 = $16.
  Total for hair and nails is $50 + $30 = $80.
  Total for the two services plus tip is $80 + $16 = $96.