You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: Sure, my name is Betty Nelson.

ASSISTANT: Ok, How can I aid you today?

USER: Owing to an emergency at my home, I need to cancel my previous reservation.

ASSISTANT: Ok, I can help you in cancellation.

USER: Thank you.

ASSISTANT: Please wait, I will check your reservation and update you.

USER: Ok, take your own time.

ASSISTANT: Thanks for waiting, we did not find any reservation on your name to cancel.

USER: Ok, not an issue. Thank you for your time.

ASSISTANT: Thanks for consulting us, have a nice day.

USER: Welcome.