You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Stephen Scott. I want to book a flight ticket to visit a White House in Washington, could you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your planned dates of travel?

USER: I would like to fly on 10/01 and return on 10/03.

ASSISTANT: Do you need any stopover in between you journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: May I know your airport codes?

USER: My source is Atlanta, GA - ATL and destination code is DC - IAD.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Here is an airline with flight number 1004 having a halt and fare is 200. Shall I proceed with booking?

USER: You can proceed to booking.

ASSISTANT: Your booking has been processed with Spirit airline.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.