conversations.from: human
conversations.value: On a particular week, Fatima's restaurant served 25 people food and drinks, and 3/5 of that number came to buy coffee. How many people did not buy coffee in the restaurant?
conversations.from: assistant
conversations.value: The number of customers who were served coffee in the restaurant is 3/5*25 = 15
  If the total number of customers who came to the restaurant was 25, then 25-15 = 10 customers did not buy coffee