This is the 10313th most frequent Russian word.
бронирования
"Бронирования" means "booking" or "reservation" in English.
In this sentence, 'бронирования' is used as a noun in the genitive singular form referring to the act or result of reserving something.
Я позвонил в отель для подтверждения моего бронирования.
I called the hotel to confirm my reservation.
Here, 'бронирования' is the root noun in a compound noun phrase, indicating the functionality of booking through an online platform.
Система онлайн-бронирования очень удобна.
The online booking system is very convenient.
In this case, 'бронирований' is the plural genitive form of the noun 'бронирование', referring to multiple acts of reservation related to guests.