How To SELL the availability of Hotel @ GRS?

Reference SELL 

1. N1A2D3    -    Sell on deluxe room with 2 double beds from availability line 3
2. N1B1DCOR   - Sell one superior room at the corporte rate from a complete hotel availability display (HOC)
   Cancel Hotel Segments

          X2   -  Cancel segment 2

          Change Segment Status

          @1HK    -  Change status of segment 1

Galileo .....