I'm a bit surprise that a well-known company publicly assume to crawler and workaround bot protection solutions.

Crawling is against Booking CGU : "Our Trip Service is made available for personal and non-commercial use only. Therefore, you are not allowed to re-sell, deep-link, use, copy, monitor (e.g. spider, scrape), display, download or reproduce any content or information, software, reservations, tickets, products or services available on our Platform for any commercial or competitive activity or purpose."