Hello.
user
Hello, how may I serve you?
assistant
I would like to cancel my flight reservation as my trip got postponed, can you please help me?
user
Sure, I will help you. Please provide the name on which ticket was reserved.
assistant
I am Joseph Evans.
user
Sorry, there is no reservation existing on your name.
assistant
That's ok, thank you for checking.
user
You are welcome, have a nice day.
assistant