You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I need to cancel my reservation which I have done to enjoy with my friends but unfortunately they are busy with their work. So, can you please help me with cancel the reservation?

ASSISTANT: Sure, I will help you.

USER: Thanks for that.

ASSISTANT: May I know your name for checking your previous reservation?

USER: Sure, Myself Catherine Wilson.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: No previous reservation available on your name Catherine Wilson.

USER: It's ok fine, no problem.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Thank you for your time.