Thread: stuck with file system ....

i am now doing a Flight Reservation System using classes and file system ...

i know how to store data about passengers info into a file and store flight info into another file.

the problem now is:

Example of flight info:
From: US
To: Aust
Departure: 1200
Arrival: 1800

the flight info is saved in the flight.dat

Example of passenger info:
Name: Amy
Flight: US to Aust

the passenger info is saved in the passenger.dat.

Each flight can takes up to 20 passengers.
how am i suppose to reserved a place for Amy ?

Code:

struct book
{
   long ID;
   int numAvailable;
};

struct Library
{
  book books[2];
//A Library "has a" group, here an array, of books.  Simplistic use of composition, but illustrates use of a group of user defined class/struct in another class/struct
};

int main()
{
   Library myLibrary; //declare a Library

   //populate the Library
   myLibrary.books[0].ID = 4365;
   myLibrary.books[0].numAvailable = 1;
   myLibrary.books[1].ID = 1111;
  myLibrary.books[1].numAvailable = 2;
  
  //have user request a book
  cout << "which book number do you want?" << endl;
  long inputID;
  cin >> inputID;
  
  int i;
  bool found = false;

  //check the Library to see if the book is there
  for(i = 0; i < 2; ++i)
  {
     if(inputID == myLibrary.books[i].ID)
     { 
        //the book is in the Library
        found = true;

        //tell how many copies are available
        cout << "there are " << myLibrary.books[i].numAvailable << " copies of book # " << myLibrary.books[i].ID << " available." << endl;

        //stop search
        i = 3;
      }
   }
    //if book not found in Library let user know
    if(!found)
      cout << "sorry, we don't have a book with ID number " << inputID << " available.  Please check with your local university book store." << endl;
}