You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Owing an emergency I have request you to cancel my reservation. Can you please help me out with that?

ASSISTANT: Sure, I am here to help you with your concern.

USER: Thank you for accepting my request.

ASSISTANT: May I know your name please to check your reservation status?

USER: Sure, my name is Betty Walker.

ASSISTANT: Please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Betty Walker, no reservation has been found on your name in our database.

USER: Oh! I think the ticket was not booked due to server issue. Anyway, thank you for the information.

ASSISTANT: Thank you for choosing us.