dialogue: Adolfo: Excuse me. I want to pay the bill.
  Andriette: Please wait till your name is called. OK. Your bill includes the doctor's fee and the cost for a 3 - day supply of medicine. It comes to one hundred yuan.
  Adolfo: Here you are.
  Andriette: Good. Here is the receipt. The dispensary is over there. . . By the way, will this be covered by your insurance from work?
  Adolfo: No, I'll e paying for myself, but I have private medical insurance.
  Andriette: In that case, I'll give you a certificate, so you can get it reimbursed.
  Adolfo: Thanks a lot.
  Andriette: Don't lose this receipt, because insurance companies are very difficult about helping when they don't have the right paperwork.
summary: Adolfo pays the bill with Andriette's assistance. Andriette reminds Adolfo to keep the receipt for insurance.