You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I be your helping hand today?

USER: I am Brian Lewis. I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, we are glad to help you. Please wait for a minute.

USER: Thank you. Sure.

ASSISTANT: Thanks for your time. We found a reservation on your name and it was cancelled successfully.

USER: Thanks for your excellent customer service.

ASSISTANT: Thnak you for reaching us.