text: Agnes: We have just had the November delivery. You asked us to let you know.
  Steven: Great. Do you have the tea I asked for?
  Agnes: the Lapsang Souchong? Yes we do.
  Steven: Great. Please keep some aside for me.
  Agnes: how much of it do you need?
  Steven: 4 * 100g bags. Two for me and one each for two of my friends who said they liked this tea. 
  Agnes: The price has gone up, but if you take five bags I can charge you the old price. 
  Steven: How much will the five bags be? 
  Agnes: That'll be just under fifty dollars in total. $49.95.
target: Steven ordered 4 bags of the Lapsang Souchong tea from Agnes, but she's offered a discount for the fifth one. Steven would need to pay $49.95 for 5 bags.