You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my recent reservation due to bad weather at my destination point. Can you help me?

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

USER: Myself Dorothy Adams.

ASSISTANT: There is no reservation on your name.

USER: Thanks for your quick response.

ASSISTANT: Thanks for choosing us.