Integrate Rocket.Chat into website

I have a business directory website in PHP and MySQL.

Each business has a separate page. There are website users and business owners.
I need users to be able to reach/chat with business owners when they visit the business page.
I think about adding a button on each business page, where users can click on it and start chat with business owner.
This might be achieved by creating a new private channel when users click on the button on business page.

There will also be a need to integrate the users and business owners database of my website into Rocket.Chat one.

Any comments or ideas of the best way to do that are highly appreciated.

Thanks a lot.