You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: As my manager did not approve my leave, I would like to cancel my recent reservation. Can you aid me with this?

ASSISTANT: Sure, may I know your name for the cancellation process?

USER: Myself Raymond Smith.

ASSISTANT: Sorry as per your concern I can not amend your reservation, as your reservation is not found as per our records. Welcome, thank you for reaching us.

USER: That's ok, thank you for checking.