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)
Your Email (required)
Check here if you accept these terms: provided data is used only for the purpose of contacting you regarding your inquiry.