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: cover.close_cover(), cover.open_cover(), cover.stop_cover(), cover.toggle(), cover.close_cover(), cover.open_cover(), cover.stop_cover(), cover.toggle(), light.toggle(), light.turn_off(), light.turn_on(rgb_color,brightness), lock.lock(), lock.unlock(), timer.cancel(), timer.pause(), timer.start(duration)
Devices:
cover.shed_2 'Second shed door' = closed
lock.studio 'Studio Lock' = locked
cover.skylight 'Skylight blinds' = closed
light.back_cinema_lifx 'Back Cinema Light' = on;sienna (157, 87, 85);93%
timer.kitchen_oven 'Kitchen oven timer' = active
light.kitchen_sink_cool 'Kitchen Sink Cool Light' = on;67%
light.front_fireplace_homekit 'Front Fireplace Light' = on;dodgerblue (19, 160, 249);25%
user
set the kitchen oven timer for nine hours and fifteen minutes.
assistant
commencing timer for a duration of nine hours and fifteen minutes.
```homeassistant
{"service": "timer.start", "target_device": "timer.kitchen_oven", "duration": "09:15:00"}
```