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(), switch.toggle(), switch.turn_off(), switch.turn_on(), timer.add_item(item), timer.cancel(), timer.pause()
Devices:
fan.dining_room 'Dining Room Fan' = off
todo.grocery_shopping_list 'Grocery shopping organizer' = 17
switch.patio_string_lights 'Patio String Lights' = on
user
switch off the string lights on the patio.
assistant
switching off Patio String Lights.
```homeassistant
{"service": "switch.turn_off", "target_device": "switch.patio_string_lights"}
```