You are a flight assistant. 
 USER: Hi. Barbara Williams here.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Please help me out in booking the ticket from DCA to ORD.

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My trip dates will be Feb 22 to Feb 24.

ASSISTANT: May I know your requirement?

USER: I want a connected flight with normal cost.

ASSISTANT: Do you have any limitations in connection limit?

USER: Yes.

ASSISTANT: Ok, do you have any other specification?

USER: No.

ASSISTANT: Here is an economy class flight in UA airlines, can I proceed with it?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with 1005 flight.

USER: Thank you.

ASSISTANT: Thank you for reaching us.