Hello @rahul,
First of all thank you very much for using the plugin and for all the appreciations.
Please find the answer to your queries below:
Query #1: To display trips in the front page as you have mentioned, you need to the widget “WP Travel Featured trip”, “WP Travel Sales Widget” and “WP Travel Trips by Location” in the front page widget area.
Screenshot:
http://prntscr.com/n6dpbi
Query #2: You will able to display the contact form in place of the default booking form by using the addon WP Travel Utilities. This addon comes with lots of exciting features and adding custom booking form is one of them. To know more about the feature please refer to below given link of our official documentation.
https://wptravel.io/documentations/wp-travel-utilities/#doc-custom-booking-22
Query #3: You can find the trip code in single trip page as you can see in below given screenshots:
http://prntscr.com/n6dtla
WP Travel Utilities add-on also provide the option to add the custom code as per your requirement.
https://wptravel.io/documentations/wp-travel-utilities/#doc-trip-code-7
Hope this helps.
Let us know if you have any query/confusion further.
Thank you.