You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide 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 here to help you with the ticket cancellation. Can I know your name please?

USER: Thank you, my name is Brandon Hill.

ASSISTANT: Ok, please allow me sometime to check your previous reservation status.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, there is no reservation 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 consulting us. Have a nice day.