wp-travel-info-customize

function wp_travel_info_customize(){
?>
  <li>
    <div class="travel-info">
      <strong class="title">Field Title</strong>
    </div>
    <div class="travel-info">
      <span class="value">
      Your Value 
      </span>
    </div>
  </li>
<?php
}

add_action('wp_travel_single_itinerary_after_trip_meta_list','wp_travel_info_customize');