You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How exactly I can serve you the best today?

USER: Please cancel my recent reservation.

ASSISTANT: Sure, may I know your good name?

USER: I am Mary Wright.

ASSISTANT: Give me a minute, I will check the previous list and let you know the details of it.

USER: Sure.

ASSISTANT: No reservation found on your name.

USER: Thanks.