You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my reservation due to sudden change in weather condition. can you assist me?

ASSISTANT: Sure, I am here to help you with your concern. May I know your name please to check your reservation status?

USER: Thank you. Nancy King.

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: Nancy King, no reservation has been found on your name in our database.

USER: No problem, thank you for searching.

ASSISTANT: Thank you for choosing us.