text: Sophia: Hi Lina, my daughter Parvati is interested in cooking classes. you still have room?
  Lina: of course, no problem, next session is saturday the 10th
  Sophia: thanks could you tell me how does it cost? 
  Lina: 20 euros each class. you may pay by cash or transfer
  Sophia: great, Parvati is so happy.
target: Parvati will attend Lina's cooking class. The next session is on the 10th. Each session costs 20 euros, payable by cash or transfer.