Hello @allan
To change the trip code we do have the filter available in the plugin using which you can change the tripcode.
For this you need to activate the child theme . You can even activate the child theme using the plugin given below:
https://wordpress.org/plugins/wp-child-theme-generator/
After activating the child theme in your child theme functions.php paste the code required using the filter.
For example :
function wp_travel_child_change_trip_code( $trip_code, $post_id ){
return 'ID HERE'. $post_id;
}
add_filter('wp_traval_trip_code','wp_travel_child_change_trip_code', 10, 2);
As for the booking detail, when we tried to edit the detail we are unable to find any kind of issue.
The booking form also works fine on our side i.e. when clicked on the submit button it works fine.
So for further inspection, we require the detail so go to Itineraries > Setting > System Information . Here you will find the system information. So please provide the information that is available here with the screenshots.
https://image.prntscr.com/image/w2eZ1SYIQRGwzjAvA-7U4g.png
Talking about including the calendar showing available tours, it requires a higher code customization.
For this you need to hire a professional developer and to do so please follow below link:
http://wensolutions.com/hire-a-customizer/
Hope this helps.
Best Regards!!
Have a good day 🙂 .