You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. May I know your good name, Please?

USER: I am Katherine Campbell.

ASSISTANT: How may I help you for the day?

USER: Please cancel recent reservation.

ASSISTANT: OK. We found a reservation on Katherine Campbell.

USER: Please cancel reservation.

ASSISTANT: Your cancellation of ticket is completed.

USER: Thanks.

ASSISTANT: Thank you, For choosing us to cancel your reservation.