int searchFlights(int flightIdx[],
    Flight flights[], int nFlights,
    const string & orig, const string & dest)
{

        int j = 0;
        for (int i=0; i<nFlights; i++)
        {
                if  (flights[i].get_orig() == orig && flights[i].get_dest() == $
                {
                        flightIdx[j] = i;
                        j++;
                }
        }

        return j;
}

////////////////////////////////////////
// 'searchFlight' searches for flight given 'airline' and 'flightNum'
//     in array 'flights' with 'nFlights' flights
// return index into 'flights' of matching flight
// or -1 if not found

int searchFlight(Flight flights[], int nFlights,
    const string & airline, int flightNum)
{
    for (int i=0; i<nFlights; i++)
        {
                if (flights[i].get_airline() == airline && flights[i].get_fligh$
                        return i;

                else
                        return -1;

        }
}