Hello.
user
Hello, how may 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. Can you please let me know your good name?
assistant
I am Justin Taylor.
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 contacting us.
assistant