You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you now?

USER: Can you cancel my recent reservation which I have done previously?

ASSISTANT: Yes, I will definitely try my best to help you in cancelling your reservation.

USER: Thank you.

ASSISTANT: Can I know your good name to check your reservation status?

USER: Ok, I am Joshua Jackson.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: We regret to inform you that, we have not found any active reservation on your name in our records.

USER: It's ok, thanks for checking my reservation status.

ASSISTANT: Thank you for choosing us.