The default number of rooms for a booking is 1 A Design Classses / Class Diagram B la o 4. OO 10 O EL D. 2 > Customer > Contact - customers customerID:void oname: void o Saddress : void phone : void - credit Limit: void - name : void - address : void - phone : void > Trip Manager + findTrip(number: int) : Trip > trips Trip - tripNumber: void - name: void departure : void - return void > Booking - bookingID : void checkin : void -checkout : void numberOfRooms : void > Hotel hotels > Hotel Manager - name : void - address : void -phone : void - / vacancy : void (=>