You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I want to cancel my recent reservation. Can you help me out?

ASSISTANT: May I know your name to check the reservation status?

USER: William Gonzalez.

ASSISTANT: Please wait.

USER: Ok, take your time.

ASSISTANT: I regret to inform, there is no reservation found on your name.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for approaching us.