MAIN MENU
               1.      Room Management
                       a.  Add a Room
                       b.  Delete a Room
                       c.  Modify a Room
                       d.  exit
               2.      Customer Management
                       a.  Add a Customer
                       b.  Delete a Customer
                       c.  Modify a Customer
                       d.  Add a facility
                       e.  Exit
               3.      Query
                       a.  Room
                       b.  Customer
               4.      Bill
               5.      Report
                       a.  Room booked  List
                       b.  Room Available List
                       c.  Exit
               6.      Exit