Hello.
Hello, how may I help you?
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
Sure, I will help you. May I know your name?
Samuel Campbell.
Thank you. Please wait for a while, let me check your reservation status.
Ok.
Sorry, no reservation found under your name in our database.
Not an issue, thank you for the information.
You are most welcome.