Error: We can’t find a booking for Morty Mortem’s family of 5 for the Halloween Scavenger Hunt Experience Session.

Last module of the trick-or-trailhead-2025-a-ghost-at-sillicorn-valley-inn I am facing this issue that all the steps are done in the org but when I go to verify the steps it throws an error.What could be the reason. I checked all possible things weather or not the previous booking cancelled ? 

Newbooking timings and number of people.