import java.rmi.RemoteException;
import java.util.ArrayList;

public class ReservationImplementation implements Reservation {

    public ReservationServer() { 
        // ...
    }

    public ArrayList<Interval> getTimetable() throws RemoteException {
        // ...
    }

    public int getAvailableSeats(Interval interval) throws RemoteException {
        // ...
    }    
    
    public boolean makeReservation(int customerId, Interval interval, int numberOfSeats) throws RemoteException {
        // ...
    }    
    
    public boolean cancelReservation(int customerId, Interval interval) throws RemoteException {
        // ...
    }
}