react native app ai voice assistance (small task) mic always on speak only when wake word

I already created ai voice assistance app. now i just want to add mic always on and ai should only speak when wake word get added. AI voice assistance and a mic always on, which will only speak when a wake word is detected. I am looking for a reliable freelancer to help me with this app. If you are interested in working with me on this project, please let me know. Thank you.