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