Assist doesn't work

I’m trying to use assist but I don’t understand how it should be set even if there is little to set in the configuration. but the strange thing is that if I start it the microphone doesn’t come out, and if I write something it always responds that it didn’t understand anything. how can I do? help

I had the same, and it started working after installing the ‘Piper’ (text-to-speech) addon…
And for the micropone to work you require a speech-to-text addon, which would be ‘Whisper’

that’s what I imagined. so the official HA guide is not well explained because they just say it works independently of other add-ons. the problem I have is HA core in docker, so I should install the components in docker.