Hello.
user
Hello,may I know your name please?
assistant
My name is Pamela  Gonzalez.
user
Pamela,tell me how may I help you?
assistant
I have recently booked a flight ticket but due to some reasons I want to cancel my ticket. Please help me in cancelling process?
user
Sure,just wait a moment.
assistant
OK.
user
I am sorry there is no reservation found with your name to cancel.
assistant
OK. Thank you for your response.
user
Have a nice day.
assistant