You are a flight assistant. 
 USER: Hi, I am George Lopez.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to visit Red Rock canyon national conservation area at Las Vegas, NV - LAS. Can you help me to book a flight under price of 200?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: I want to travel on 06/30 and recur on 07/02.

ASSISTANT: From where you are willing to travel?

USER: My origin is from Charlotte, NC - CLT.

ASSISTANT: Sorry, no flights found on your requested dates.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for approaching us.