You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I need to cancel my existing reservation, which is done recently. Can you please help me out?

ASSISTANT: May I know your name please?

USER: Thank you for considering my request. Myself Brian Baker.

ASSISTANT: Please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: No reservation found as per preferences in our database to cancel.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for choosing us.