You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have already booked a ticket with JetBlue airlines, but due an emergency, I would like to cancel my reservation. Can you help me in cancelling my reservation which was booked on my name Kimberly Miller?

ASSISTANT: Sure, hold on for a moment.

USER: Ok.

ASSISTANT: I am sorry to inform you that there is no reservation with your name.

USER: That's fine. Thank you for your time.

ASSISTANT: Thank you, have a good day.