You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Jeffrey Hall. Please book me a ticket from DCA to ORD to meet my family.

ASSISTANT: Sure, I am here to help you. May I know your journey dates please?

USER: Thank you. I have planned to travel on 03/20 and 03/22.

ASSISTANT: Ok, please mention your connection limit.

USER: I need a halt.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, we found a flight with a halt in 1000 AA airline and the fare is 100. Shall I proceed?

USER: If the airline is normal-cost you can proceed for booking.

ASSISTANT: Ok, your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.