conversations.from: system
conversations.value: Please provide the command in the following format:
  <reply>
  <cmd>
  pacmd set-default-sink 2
  </cmd>
  </reply>
  
  Stick to bash commands only.
conversations.from: human
conversations.value: Make the 'Speakers' device (output ID 2) the default sound output (requires a tool like pacmd on PulseAudio-enabled systems)
conversations.from: gpt
conversations.value: <reply>
  pacmd set-default-sink 2
  </reply>