The other reason the plant can stop flowering is lack of light (light intensity). An ideal situation for the plant is outside on a patio in the summer (late May until late Sept) then keep it in the Conservatory for the rest of the year or it can stay in the conservatory all year round.
Now if your conservatory does not have a clear roof made from glass or polycarbonate but it is made from tiles then there is every chance it will not let sufficient light into the room for the plant to continue flowering, to overcome this put the plant at the front of the conservatory nearest the windows and it will get good light there and hopefully initiate flower buds.
The plant will continue to throw out long shoots most of the year round, these can be removed during the winter but the plant will produce new flowers from these shoots, so be careful not to remove the flower buds without realising, the buds can be seen if you look closely in the shoots as they mature.
If you heat your conservatory it is possible that a mature plant can flower 10 months a year given the right conditions.