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_area 'Dining Area Fan' = on
todo.pet_vaccination_schedule 'Pet vaccination scheduler' = 25
switch.conservatory_lights 'Conservatory Lights Switch' = off
user
i need write a letter to a future self added to my pet vaccination scheduler.
assistant
write a letter to a future self has been added to your todo list.
```homeassistant
{"service": "todo.add_item", "target_device": "todo.pet_vaccination_schedule", "item": "Write a letter to a future self"}
```