Voice automation: Limit catched sentence to selected assist only

I would like to be able to limit the assist sentence automation trigger to a Assistent device. I have added olama llm to my voicemail and a desperate home assistant instance. Because it catches of all words from a voip connection to determine if the call is allowed or not.

and I would like to display the responce in my KDE widget if i use my laptop as voice.
If i could be able to catch of all words from my laptop then trigger the conversation to assist in the automation and display the result to my kde widget.