You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: My name is Karen Phillips and I would like to cancel my reservation.

ASSISTANT: Sure, we are here to help you. Please wait for a while, let me check your reservation and revert to you.

USER: Sure. Take your time.

ASSISTANT: Thank you for your valuable time, we found a reservation on your name and cancelled successfully.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.