Hello.
user
Hello, how may I be at your service today?
assistant
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
user
Sure, I can cancel your reservation right now. Before that I need to know your good name please?
assistant
I am Christopher Moore.
user
Sorry, there is no reservation matching with your name in our portal.
assistant
Ok, no issues. Thank you for checking.
user
Thank you for choosing us.
assistant