LSX - Add a booking link to the banner for the room post type

lsx-banner-booking-link.php

<?php
 /**
  * Add Banner to the Rooms Single template.
  *
  * @package theme
  * @subpackage functions
  * @category banner
  */
 function theme_room_single_banner_content() {
 	if ( is_singular('room') ) {
         $booklink = get_theme_mod('booking_link',false);
         if( !empty( $booklink ) ){ ?>
		 	<a href="<?php echo $booklink; ?>" class="button white hidden-xs hidden-sm">Book Now</a>
		<?php }
    } 
 }
 add_action( 'lsx_banner_content', 'theme_room_single_banner_content' );
 ?>