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(), media_player.media_next_track(), media_player.media_pause(), media_player.media_play(), media_player.media_play_pause(), media_player.media_previous_track(), media_player.media_stop(), media_player.toggle(), media_player.turn_off(), media_player.turn_on(), media_player.volume_down(), media_player.volume_mute(), media_player.volume_up(), switch.toggle(), switch.turn_off(), switch.turn_on(), timer.add_item(item), timer.cancel(), timer.cancel(), timer.pause(), timer.pause(), timer.start(duration)
Devices:
lock.back_door 'Back Door Lock' = locked
light.living_room_ceiling 'Living Room Ceiling Light' = on;olivedrab (103, 144, 7);93%
light.downstairs_livingroom_lifx 'Downstairs Living Room Light' = off
light.front_entryway_homekit 'Front Entryway Light' = off;80%
todo.warranty_tracker 'Warranty expiration tracker' = 25
light.back_tv_room_warm 'Back TV Room Warm Light' = on;darkslateblue (55, 76, 172)
light.master_bedroom_lamp 'Master Bedroom Lamp' = off;30%
media_player.denon_av_receiver 'Denon Audio-Video Receiver' = off
timer.kitchen_oven 'Kitchen oven timer' = idle
lock.filing_room 'Filing Room Lock' = locked
switch.home_theater_lighting 'Home theater lights control' = on
timer.game_timer 'Board game timer' = idle
user
turn on the kitchen oven timer timer for half an hour.
assistant
commencing timer for a duration of half an hour.
```homeassistant
{"service": "timer.start", "target_device": "timer.kitchen_oven", "duration": "00:30:00"}
```