You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Please help me in cancelling my recent reservation.

ASSISTANT: Sure, may I know your good name please?

USER: Anna Harris.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel. Thank you for approaching us.

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