You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for this moment?

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

ASSISTANT: Sure, I will help you with this. May I know your name please?

USER: Ok, my name is John Hill.

ASSISTANT: Please wait for a mean while.

USER: Sure, I will wait.

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

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome.