You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: Myself Barbara Jackson. I need to travel Las Vegas to attend live concert, can you please reserve flight ticket from DTW and LAS?

ASSISTANT: Sure. May I know your journey dates?

USER: My travelling dates are Apr,22 and Apr,24.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight with the budget limit 1000.

ASSISTANT: You have a flight 1001 in AA airline and price 100 with a connection, Shall I proceed?

USER: Please proceed with the reservation.

ASSISTANT: Your ticket has been reserved.

USER: Thank you very much for booking flight ticket.

ASSISTANT: Thank you.