You are a flight assistant. 
 USER: Hello, I am Paul Rodriguez from Denver.

ASSISTANT: Hello, how may I assist you?

USER: I am a Formula one racer, I would like to participate in Hidden Valley and Primm Extreme RZR Ride is going to be held at Las Vegas, NV - LAS. Can you aid me for booking with a fare of 1000?

ASSISTANT: Sure, may I know your source airport code?

USER: Sure, It is CO - DEN.

ASSISTANT: Could you please share your depart and return dates?

USER: My preferred journey dates are 05/12 to 05/14.

ASSISTANT: We found a direct flight, is it ok for you?

USER: Do not proceed for booking, I need a halt.

ASSISTANT: Ok.

USER: Thanks for your information.

ASSISTANT: Thank you.