RoomGuests room1Guests = new RoomGuests(adults: 2, childs: 1);
RoomGuests room2Guests = new RoomGuests(adults: 2, childs: 1);

List<RoomType> availibleRoomTypes1 = HotelSystem.Reservations.GetAvailibleRoomTypes(room1Guests);
List<RoomType> availibleRoomTypes2 = HotelSystem.Reservations.GetAvailibleRoomTypes(room2Guests);

//select a room type
RoomType roomType1 = availibleRoomTypes1.First();
RoomType roomType2 = availibleRoomTypes2.First();

List<RoomTypeReservation> roomInterests = new List<RoomTypeReservation>
{
    new RoomTypeReservation(roomType: roomType1, responsible: "David",guests: room1Guests),
    new RoomTypeReservation(roomType: roomType2, responsible: "Omar", guests: room2Guests)
};

PaymentDetails paymentDetails = new PaymentDetails();

Reservation reservation = HotelSystem.Reservations.Create(roomInterests, paymentDetails, payNow: false);

int reservationNumber = reservation.number;

//Find Davids room type reservation - alternative 1
reservation = HotelSystem.Reservations.Find(reservationNumber);
RoomTypeReservation roomTypeReservation = reservation.GetRoomTypeReservationByResponsible("David");

//Find Davids room type reservation - alternative 2
roomTypeReservation = HotelSystem.Reservations.FindRoomTypeReservation(reservationNumber,"David");

//Find Davids room type reservation - alternative 3
roomTypeReservation = HotelSystem.Reservations.FindRoomTypeReservation(personalNumber:"930816-xxxx");

//Check in Davids room
RoomBooking roomBooking = HotelSystem.RoomBookings.CheckIn(roomTypeReservation);
int roomNumber = roomBooking.Room.Number;

//Check out Davids room
roomBooking = HotelSystem.RoomBookings.Find(roomNumber);
HotelSystem.RoomBookings.CheckOut(roomBooking);