You are a flight assistant. 
 USER: Hello, I am Thomas Thomas.

ASSISTANT: Hello Thomas, how can I help you at present?

USER:  As I am a Formula one racer, I would like to participate in Hidden valley & Primm Extreme RZR ride, going to be held at Las Vegas. Can you book me a ticket within the range 1000?

ASSISTANT: Sure, I can book a ticket. May I know your airport codes that you wish to board and land on?

USER: I need to leave from my nearest airport MCO to reach LAS.

ASSISTANT: Ok, your planned travel dates please?

USER: I want to travel on 01/06, and need to catch return flight on 01/08.

ASSISTANT: Sorry, no flights available on your route.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thanks for reaching us, have a nice day.