Please login to our website, download the latest version of the theme. In this, we have added availability search form shortcode setting to display your for into slider section.
After installation new theme, Please go to Appearance -> Customize -> Section: Slider -> Slider Background Images -> Here you can see “Availability Search Form Shortcode” setting. Just add your availability search form shortcode into this setting. Now, Click on top Publish button to save the changes.
Check your website again.