Hello.
Hello, how may I be at your service today?
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
May I know your name please to check the status of your reservation?
Jacob Jones here.
Thank you. Please stay online for a while, I will check your reservation status and let you know.
Sure.
Sorry, there is no reservation matching with your name in our portal.
That's ok, thank you for giving information.
Thank you for reaching us.