You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Jason Hill.

ASSISTANT: Ok.

USER: As a part of refreshment from routine life, I planned for a trip with my brother to Las Vegas for overview of city. Will you please help me in booking a flight ticket with fare 500?

ASSISTANT: Sure, provide me with your airport codes.

USER: My destination airport code is Las Vegas NV-LAS and origin code is Orlando FL-MCO.

ASSISTANT: Ok, could you please mention your trip dates?

USER: My trip dates are 11/07 and 11/09.

ASSISTANT: Ok, do you need any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Sorry to say that, no reservation was found on your required journey dates.

USER: Ok, no issues.

ASSISTANT: Thank you for availing our services.

USER: Thank you for your service.