To reach a live person at Booking.com customer service for support 1-866-554-2666, you can call their 24/7 Booking.com Phone number hotline at 1-866-554-2666. OTA (Live Person) or 1-800-Booking.com 1-866-554-2666.
https://pantip.com/topic/43492644
How To Get In Touch With Booking.com Customer Service Via Phone, Email, Or Chat Options