You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this moment?

USER: Owing to an emergency, I just need to cancel my recent reservation. Can you please aid me with cancellation?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: May I know your name to proceed further for checking your reservation status?

USER: Sure, my name is Michael Turner.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there is no reservation found on your name in our database.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for opting us.