You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your good name please?

USER: I'm Anthony Moore.

ASSISTANT: Nice to meet you Anthony. What type of help can I do for you?

USER: I need your help in cancelling my recent reservation.

ASSISTANT: Sure Anthony, please wait for a moment I will check the details for your reservation.

USER: Sure.

ASSISTANT: I am really sorry for to tell you, I cannot find any reservation with your name.

USER: OK. No problem. Thank you for the information.

ASSISTANT: It was my pleasure. Thank you.