How to make chatbot responses feel more natural?

I’m working on a small chatbot project for a personal assistant type application, and one of the biggest challenges I’m facing is making the responses feel genuinely conversational instead of robotic.

I’ve been experimenting with different prompting techniques and temperature settings, but there’s still this polished, overly formal quality to the responses that feels artificial. I came across humanizer tools like UnAIMyText that are designed to make AI-generated text sound more natural, and I’m wondering if integrating something like that into my chatbot’s response pipeline would actually improve the UX.

My main questions are whether humanizer tools work well for real-time conversational AI versus just static content like essays or blog posts. Do they handle the back-and-forth nature of chatbot interactions effectively, or are they mainly built for one-off text processing?