You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Alexander Hall here.

ASSISTANT: How can I assist you today?

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.

USER: Thank you.

ASSISTANT: Please wait for a while let me check your previous reservation.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting. Sorry Hall, there is no reservation found on your name in our records to cancel it.

USER: Oh! I think the ticket was not booked due to server issue.

ASSISTANT: Thank you for reaching us.

USER: Anyway, thank you for the information.