Theme: Travel Base Pro
Plugin: WP Travel
Plugin: WP PayPal
Plugin: WP Utilities
Couple of issues:
You may want to take a look at .paxpicker .category.available-seats>span. There is no padding, which means that the number of available seats is juxtaposed (stuck) right next to the colon.
For others reading this who want a quick fix and are comfortable navigating CSS, you can add: padding-left: 15px to the above CSS and that will address the problem.
Available Seats After a Confirmed Booking:
Once customers book X number of seats, the total available seats remains the same rather than adjusting to show the remaining available seats for the trip. So when the next customer visits the trip, s/he sees full availability rather than the actual availability.
The issue regarding the padding, we have fixed the issue in the latest update of the plugin. If the issue still persist then kindly let us know.
Further, as for the seat count option, what you need to be clear is that the inventory option will work for the fixed departure option only. If you have set the trip duration option then the seat will remain even after the booking.
So make sure you have the fixed departure date option chosen for the trip.
Hope this clears the confusion.
Let us know if you have any query/confusion further.