Hello.
Hello. How can I assist you today?
 I want to cancel my reservation, due to some personal problems I am unable to catch that flight, can you please cancel my reservation?
Sure, I will help you on that.
Thanks.
Please help me on what name can I check the reservation?
Sure, my name is Andrew Lee.
There is no reservation found under your name.
It's ok no problem. Thank you for your information.
Welcome, have a great day.