You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you?

USER: I want to book a flight ticket to attend my sister's marriage at Las Vegas, please help me with a connecting flight.

ASSISTANT: Sure, we are glad to help to book a flight ticket. May I know your good name?

USER: I am Jack Wright.

ASSISTANT: Please share me on what dates you are travelling to attend marriage?

USER: I want to fly on 08/16 and return 08/18.

ASSISTANT: May I know your budget for flight ticket?

USER: I need the ticket within price 5000.

ASSISTANT: Please also provide me your source and destination airport code?

USER: My origin point is IL- ORD and Dest point is NV- LAS.

ASSISTANT: Please hold for a moment, while we check for the flight availability.

USER: Ok.

ASSISTANT: Thanks for holding, we have a flight of airline Southwest for you. Flight number is 1002 and fare is 100.

USER: Please go with booking.

ASSISTANT: Sure. Your flight ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for picking us, have a nice journey.