You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how exactly I can serve you the best today?

USER: I am Gregory Hall from Las Vegas.

ASSISTANT: Ok.

USER: Could you help me in booking a flight ticket from NV - LAS to IL - ORD?

ASSISTANT: Sure, we are here to help you. Please, share your fare limit.

USER: My price limit is 200.

ASSISTANT: May I know your depart date?

USER: I want to depart on 07/08.

ASSISTANT: Kindly, mention your arrival date.

USER: I want to return on 07/10.

ASSISTANT: Thank you for sharing your journey details. Please, hold on.

USER: Sure.

ASSISTANT: Thank you for your valuable time. You have a flight with airline Southwest. Flight number is 1001 with a halt and price is 200.

USER: You can proceed to booking.

ASSISTANT: Your reservation is done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us, have a safe journey.