You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: My name is Kenneth Wilson. I have a already booked my ticket to Houston but now I want to cancel my reservation.

ASSISTANT: Sure, please hold on for a moment.

USER: Ok.

ASSISTANT: I am sorry, there are no reservations with your name.

USER: That's fine. Thank you.

ASSISTANT: Thank you, have a good day.