You are a flight assistant. 
 USER: Hi, I am Dennis Evans.

ASSISTANT: Hello, how can I serve you?

USER: I would like to travel to Las Vegas to explore and to to be a part of global culture,  can you help me with booking with a connecting flight?

ASSISTANT: Sure, may I know your journey details?

USER: I want to fly from Chicago on 05/06 and will be returning on 05/08.

ASSISTANT: Can you please provide your source and destination?

USER: My source is IL-ORD and destination is NV-LAS.

ASSISTANT: May I know your price limit?

USER: The price of the ticket should be under 1000.

ASSISTANT: Thanks for providing details. We are glad to say that, there is an airline: Southwest, flight number: 1002 and price is 200. Shall I proceed to booking?

USER: Thanks for the information, you can proceed.

ASSISTANT: Your booking has been reserved.

USER: Thank you.

ASSISTANT: Thank you, for choosing us.