You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please assist me to cancel my active reservation?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Catherine Roberts.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: I regret to inform you that, there is no reservation found on your name in our records.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.