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