Fire at single itineraries page of WP Travel.

Source

File: /inc/class-wp-travel-extras-frontend.php
Used by: /inc/class-wp-travel-extras-frontend.php

Parameters
$trip_extras, $price_key, $arrival_date, $trip_id

Example:

function prefix_wp_travel_extras_pro_extras_layout( $trip_extras, $price_key, $arrival_date, $trip_id ) {
    esc_html_e( ‘This is content added using this hook’, ‘text-domain’ );
}
add_action( 'wp_travel_extras_pro_extras_layout', 'prefix_wp_travel_extras_pro_extras_layout'  );