conversations.from: human
conversations.value: Tim has to go to the doctor for a sporting injury.  He gets an MRI which costs $1200.  The doctor needs to examine it for 30 minutes and charges $300 per hour.  There is also a $150 fee just for being seen.  Insurance covered 80% how much did he pay?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: The doctor charged 300/2=$150
  So the total cost was 150+150+1200=$1500
  The insurance covered 1500*.8=$1200
  So he paid 1500-1200=$300