You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Could you please help me in cancelling my reservation?

ASSISTANT: Sure, can I know your name?

USER: My name is Katherine Lee.

ASSISTANT: Please hold on for a moment.

USER: Sure, please take your time.

ASSISTANT: I am sorry, there are no reservations with your name.

USER: No issues, than you for the help.

ASSISTANT: Thank you, have a good day.