DB Locking in Reservation Systems - https://akshitbansall.medium.com/db-locking-in-reservation-systems-3b3d574c7676

Solving Double Booking at Scale: System Design Patterns from Top Tech Companies - https://itnext.io/solving-double-booking-at-scale-system-design-patterns-from-top-tech-companies-4c5a3311d8ea
