You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Moore.

ASSISTANT: May I know your name please? How can I help you today?

USER: Will you please help me to cancel my recent reservation?

ASSISTANT: Sure Barbara Moore, please wait for a minute to check.

USER: Sure.

ASSISTANT: I am really sorry Moore, I cannot find any reservation with your sweet name.

USER: OK, it's fine. Thank you for your service.

ASSISTANT: It was my pleasure, Is there anything else I can do for you?

USER: No, nothing.

ASSISTANT: Thank you so much for contacting us.