You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how could I assist you for the day?

USER: Please book a ticket from Washington DC-IAD to Minneapolis & St. Paul, MN-MSP.

ASSISTANT: Sure, when you want to travel?

USER: Departure is on 09/07 and 09/09 is my return.

ASSISTANT: May I know your name please?

USER: I am Sandra Williams.

ASSISTANT: Do you have any other specifications?

USER: Price limit 500. Connections limit 1.

ASSISTANT: Ok, hold on a moment.

USER: Sure.

ASSISTANT: Thanks for your time, we found a flight with a halt in 1000 AA airline and the fare is 200.

USER: Please book a ticket.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thanks.

ASSISTANT: Thank you for availing us.