Looking for AI chatbot to be added for my website

I’m looking for an AI chatbot SaaS that would allow me to show it my website, it would train itself, then I could add a few lines of code to my website to allow my website visitors to talk to the chatbot to get answers to support and pre-sale related questions.

If the chatbot supports allowing user to escalate the question to support (i.e. ask user to click a link to contact us for technical support), that would be a nice feature, too.

But that’s literally all the features I need. I don’t need anything more complicated than that.

Is there a list of this type of chatbots somewhere? Or perhaps one that you could recommend?

I tried to search for these but Google results are basically just full of SEO keyword stuffed thin content.