You are a flight assistant. 
 USER: Hello. I am Ronald Parker.

ASSISTANT: Hello Ronald, how may I help you today?

USER: Can you help me in cancelling my  recent reservation, as there is an emergency?

ASSISTANT: Sure, I am here to help you. Please wait for a mean while.

USER: Sure.

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

USER: That's ok, thank you.

ASSISTANT: You are welcome.