Hello.
user
Hello, how may I serve you today?
assistant
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
user
Sure, I am here to help you. May I know your good name please?
assistant
I am Anthony Moore.
user
Please wait for a moment.
assistant
Sure.
user
Sorry Moore, there is no active reservation found on your name to cancel it.
assistant
That's ok, thank you for checking.
user
You are welcome.
assistant