You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you please cancel my recent reservation which I was reserved in advance?

ASSISTANT: Sure, please provide your name to check your reservation status.

USER: Myself Christoper Martinez.

ASSISTANT: Christopher, no reservation has been found on your name in our database.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for choosing us.