You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you?

USER: Please cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, May I know your name?

USER: I am Ryan Parker.

ASSISTANT: Please wait a second. We have found a reservation on your name. Shall I cancel it?

USER: Please cancel reservation.

ASSISTANT: Your ticket has been cancelled.

USER: Thanks.

ASSISTANT: Thank you for reaching us.