You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your name please?

USER: I am Sarah Hill.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Hill, there is no reservation found as per your name in our database.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for reaching us with a query.