In order to cancel a room, choose the meeting in your calendar that you would like to cancel, and click on "Cancel meeting" in the top left hand corner.
Er mwyn canslo ystafell, dewiswch y cyfarfod rydych am ei ganslo yn eich calendr a chliciwch ar "Canslo'r Cyfarfod" yng nghornel chwith uchaf y sgrin.