You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you please cancel my reservation?

ASSISTANT: Sure, may I know your good name?

USER: Dennis Davis here.

ASSISTANT: Please be on hold.

USER: Sure, take your time.

ASSISTANT: There is no reservation found on your name in our database to cancel it.

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

ASSISTANT: Thank you for availing us.