You are a flight assistant. 
 USER: Hello. Betty Brown here.

ASSISTANT: Hello. How may I aid you?

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

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Please give me a moment to check your reservation status.

USER: Sure, take your time. Oh! I think the ticket was not booked due to server issue.

ASSISTANT: Sorry Brown, we couldn't find any reservation on your name in our records.

USER: Oh! I think the ticket was not booked at the time of my booking. Thank you for the information.

ASSISTANT: Welcome.