You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to bad weather I want to cancel my business trip. Please help me.

ASSISTANT: Sure, may I know your name please?

USER: Karen Parker.

ASSISTANT: There was no reservation found with your name.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for opting us. Have a nice day.