You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I would like to cancel my recent reservation due to cancel of my seminar.

ASSISTANT: Sure, I am here to help you out.

USER: Could you please help me?

ASSISTANT: Sure, may I know your name please?

USER: I am Linda Mitchell.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Linda Mitchell, we haven't found any reservation under your name in our database.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for choosing us.