You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: Owing to an emergency, my business conference got cancelled. So I want you to cancel my existing reservation.

ASSISTANT: Sure, may I know your name?

USER: Sure, Rebecca Carter here.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: We found a reservation on your name, as per your request it has been cancelled.

USER: Thank you for your kind service.

ASSISTANT: Thank you for availing us.