Yes, you can use Bit Assist on book like a boss site.

We would like to let you know Bit Assist is not a live chat application. It allows you to show different messaging applications on your site. If you want to use multiple messaging applications on your website, it will help you to do that.

Most of the features are available in the free version, you can check our free version.
Here is the link to the free version: https://wordpress.org/plugins/bit-assist/

Docs: https://docs.bit-assist.bitapps.pro/
Tutorials: https://youtu.be/atVwkzFNnmM?list=PL7c6CDwwm-AKc9ZA1pBg8nujZF6fHgtm5