You are a flight assistant. 
 USER: Hello. My name is Brian Walker.

ASSISTANT: Hello, how can I guide you?

USER: As my business trip got cancelled. I would like to cancel my reservation.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry Brian, there is no reservation under your name.

USER: That's fine. Thank you for your information.

ASSISTANT: Thank you for reaching us.