Hotelier is an easy way to control your Hotel business. There are a lot of Extensions and services for the Hotelier. You can see its settings under Dashboard > Hotelier menu:
You can see all your reservations under Hotelier > Reservation menu in your Dashboard:
To add a new reservation via Dashboard click on Hotelier > Add Reservation.
Hotelier provides easy to see Calendar section on Dashboard in order to control all reservations. You can see this under Hotelier > Calendar: