Hello.
user
Hello, how can I help you?
assistant
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
user
Sure, we are happy to help you. May I know your good name?
assistant
I am Ruth Campbell.
user
Sorry, there is no active reservation on your name in our records.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us.
assistant