You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am Michelle Brown.

ASSISTANT: Nice meeting you Brown.

USER: I need to cancel my reservation due to crisis in my destination. Can you help me out in cancelling the flight ticket?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Please wait a moment to check your previous reservation.

USER: Sure.

ASSISTANT: Sorry to inform you that, there is no reservation found with your name in our records.

USER: That's ok, no problem. Thank you for your response.

ASSISTANT: Thank you for reaching us, have a great day.