Avada includes blank pages so you can build all kinds of awesome stuff, like a coming soon page!
This is where a contact form can go. This can eb done with the free Contact Form 7 plugin. Install the plugin, then create a form and insert the shortcode for the form here. Like you see below:
Your Name (required)
Please leave this field empty.
Your Email (required)
Anti-spam question - which is the bigger number, 10 or 20?