You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Owing to an emergency, I want to cancel my reservation. Can you help me out?

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: Sure, my name is Paul Lee.

ASSISTANT: Sorry Lee, there is no reservation found as per your name to cancel your reservation.

USER: That's ok, thank you.

ASSISTANT: You are welcome.