Add Airchat bots to Unbounce

Is there an easy way to add https://airchat.us website chatbots to my Unbounce sites.
I tried to find some information online but no luck. Airchat says there is a JavaScript code I need to put on a website but I’m not sure I understand how to do that. Please help.

Copy that javascript code then edit the page you want to add the chat to.

In the bottom left, select javascript and then add javascript.

Give the script a name and select where the script should be added. This is usually given by the makers of the script. Often this is “before the body end tag ”.