book in

US /bʊk ɪn/
UK /bʊk ɪn/
"book in" picture
1.

reservar, registrarse

to arrange for someone to stay at a hotel, or for a seat on a plane, etc.

:
I'll book in for two nights at the hotel.
Voy a reservar dos noches en el hotel.
Please book in your flight as soon as possible.
Por favor, reserve su vuelo lo antes posible.
2.

registrar, apuntar

to officially record someone's name as a visitor or for an appointment

:
The receptionist will book you in when you arrive.
La recepcionista le registrará cuando llegue.
Make sure to book in with the doctor's office for your annual check-up.
Asegúrate de reservar una cita con el consultorio del médico para tu chequeo anual.