I want to get title name of post, but i didn't get by this code. Any suggestion?

add_shortcode('sort_featured_restaurant','sort_featured');
function sort_featured(){

 $the_query = new WP_Query( $args );

 // The Loop
 if ( $the_query->have_posts() ) {
   echo '<ul>';
   while ( $the_query->have_posts() ) {
    $the_query->the_post();
    echo '<li>' . get_the_title() . '</li>';
   }
   echo '</ul>';
  } else {
  // no posts found
 }
// Restore original Post Data
wp_reset_postdata();

 if(!$wp_query) {
        global $wp_query;
    }

 $args = array(
  'post_type' => 'food',
  'orderby'   => 'meta_value_num',
  'meta_key'  => 'listing_price',
  'order'  => 'DESC'
 );
 $query = new WP_Query( $args );

 query_posts( array_merge( $args , $wp_query->query ) );
}