Hello.
user
Hello, how can I help you today?
assistant
 I would like to cancel my flight reservation as my trip got postponed, can you please help me?
user
Sure, I am here to help you with that. Can you please share your name?
assistant
My name is Joseph Lee.
user
Please wait a moment.
assistant
Ok.
user
Sorry, no reservation found on your name in our database.
assistant
Not an issue, thank you for the information.
user
Thank you for reaching us, have a nice day.
assistant