You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my ticket due to some reasons. Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I will help you with the flight ticket cancellation.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Joseph Walker.

ASSISTANT: Ok. But I am sorry to tell you that there is flight reservation to cancel.

USER: It's ok, anyway's thank you for searching.

ASSISTANT: Thank you.

USER: Welcome.