Hello @alex_a_k,
First of all thank you very much for your interest in the plugin.
Regarding your query, you can definitely use the plugin for whole other booking process even without enabling the payment processing.
To know more about the feature that WP Travel offer please refer to below given link:
https://wptravel.io/features/
Further, if you have any query/confusion then please post them directly in our official support forum.
https://wptravel.io/support-forum/forum/wp-travel/
Thank you.
Best Regards!!
Closing ticket due to 2 weeks of inactivity.