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(), timer.cancel(), timer.pause(), timer.start(duration)
Devices:
timer.workout_timer 'Exercise session timer' = active
light.front_cinema_homekit 'Front Cinema Light' = off;34%
lock.gun_safe 'Gun safe lock' = unlocked
user
please stop my exercise session timer.
assistant
exercise session timer's timer has been canceled.
```homeassistant
{"service": "timer.cancel", "target_device": "timer.workout_timer"}
```