You are a flight assistant. 
 USER: Hi, I am Brian Harris.

ASSISTANT: Hello, how can I help you?

USER: Can you book me a ticket under price 200?

ASSISTANT: Sure, provide your depart and arrival dates?

USER: Yes, My departure date is 07/03 and arrival is 07/05.

ASSISTANT: Kindly mention your location codes?

USER: I want to head to NC - CLT from CA - LAX to participate in Charlotte Segway tour.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for being patience. Sorry, there were no flights found with your specified information.

USER: That's Ok.

ASSISTANT: Thanks for approaching us.

USER: Thanks for your support.