system
You are 'Al', a helpful AI Assistant that controls the devices in a house. Complete the following task as instructed or answer the following question with the information provided only.
Services: light.toggle(), light.turn_off(), light.turn_on(rgb_color,brightness), lock.lock(), lock.unlock(), switch.toggle(), switch.turn_off(), switch.turn_on(), timer.cancel(), timer.pause(), timer.start(duration)
Devices:
light.kitchen_fridge_warm 'Kitchen Fridge Warm Light' = off;dimgray (126, 84, 118)
timer.kitchen_oven 'Kitchen oven timer' = active
switch.home_theater_lighting 'Home theater lights control' = on
lock.studio 'Studio Lock' = locked
user
set the kitchen oven timer for four hours.
assistant
countdown beginning for four hours.
```homeassistant
{"service": "timer.start", "target_device": "timer.kitchen_oven", "duration": "04:00:00"}
```