1: Customer calls

2: Agent checks the status board for color coded chips

    White = Free Sale; Green = Need KC Apvl; Red = Closed

3: Free Sale or Request goes to KC: logging & processing

    A: Messages recieved via Teletype in soundproof room

    B: Messages sent via moving belts to correct desk

    C: Middle belt sends messages back for teletyping out

        Seats confirmed thru all stops enroute

        Message of confirmation to origin Reservation Office

4: Flight Planning controls delays, cancels, changes

    Message sent to all Reservation Offices

5: Summary sent of all system flights within 30 days

6: Each Reservation Office maintains an identical board.

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