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: fan.decrease_speed(), fan.increase_speed(), fan.toggle(), fan.turn_off(), fan.turn_on(), light.toggle(), light.turn_off(), light.turn_on(rgb_color,brightness), timer.cancel(), timer.pause(), timer.start(duration)
Devices:
light.upstairs_closet_zwave 'Upstairs Closet Light' = on;mediumblue (28, 20, 204)
timer.dining_room_dimmer 'Dining room light timer' = active
fan.bedroom 'Bedroom Fan' = on
fan.guest_room 'Guest Room Fan' = off
timer.patio_lighting 'Patio ambiance timer' = active
user
turn on the patio ambiance timer timer for three and a half hours.
assistant
patio ambiance timer timer is now running for three and a half hours.
```homeassistant
{"service": "timer.start", "target_device": "timer.patio_lighting", "duration": "03:30:00"}
```