Change indicators
      RCI    RESERVATION CONTROL INFORMATION
      Function: To specify a reference to a reservation.
010   E979  RESERVATION CONTROL IDENTIFICATION         C   99
      3036   Party name                                C      an..35
      9040   Reservation control number                C      an..20
      9043   Reservation control number qualifier      C      an..3
      2000   Date                                      C      an..14
      2164   Millisecond time                          C      n9
      1154   Reference number                          C      an..35