Hello.
Hello, how may I assist you at this moment?
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
Sure, may I know your good name?
I am Paul Hernandez.
Ok, please wait for a while.
Sure.
Thanks for waiting, there is no active reservation found on your name.
That's ok, thank you for checking.
Thank you for choosing us.