I have been able to use Siri to turn on/off lights.
"Turn on [room] lights"
"Turn off [room] lights".
"Dim [room] lights"
"Dim [room] lights to [##] percent"
"Set [room] lights to [##] percent"
Anyone have any others that they have found? I would like something that works a scene, but can't seem to get that to work.