void print_menu (void)
{
    printf("\n");
     printf("1. add a flight\n");
     printf("2. display all flights to a destination\n");
     printf("3. save the flights to the database file\n");
     printf("4. load the flights from the database file\n");
     printf("5. exit the program\n");
     printf("Enter choice (number between 1-5)>\n");
}

flights_t add_flight(index)
{
    /* Set up a verable for getting data */
    flights_t temp_flight;
    int j,i=0;

    /* in array for flights is full do not add more. */
    if(index >= MAX_NUM_FLIGHTS)
    {
        printf("Cannot add more flights - memory full\n");
        return temp_flight;
    }


    /* Scan in flight code one char at a time */
    printf("Enter flgiht code>\n");
    for(j=0; j<MAX_FLIGHTCODE_LEN-1; j++)
    {
            scanf("%c", &temp_flight.flightcode[j]);
    }
    temp_flight.flightcode[i] = '\0';
   fflush(stdin);

   printf("Flight code entered: %s\n", temp_flight.flightcode);

    printf("Enter depature info for the flight leaving sydney.\n");
    while (i ==0)
    {
        printf("Enter month, date , hour and minute separated by spaces>\n");
    /* scan in depature time in formate day month hour year */
        scanf("%d",&temp_flight.departure_dt.month);
        scanf("%d",&temp_flight.departure_dt.day);
        scanf("%d",&temp_flight.departure_dt.hour);
        scanf("%d",&temp_flight.departure_dt.minute);
        if(valid_input(3,temp_flight)==0)
        {
            printf("Valid date\n");
            i++;
        }
        else
        {
            printf("invalid date\n");
      }
    }
     fflush(stdin);
   i=0;
    /* Scan in arrival city code on char at a time */
    while(i==0)
    {
        printf("Enter arrival city code>\n");
        for(j=0;j<MAX_CITYCODE_LEN-1;j++)
        {

                scanf(" %c",&temp_flight.arrival_city[j]);


            temp_flight.arrival_city[j] = '\0';



        }
        printf("City code entered: %s\n", temp_flight.arrival_city);
        if(valid_input(4, temp_flight)==0)
        {
            printf("Valid input\n");
            i++;
        }
        else
        {
            printf("invalid input\n");
        }

    }
    i=0;
    /* Scan in arival date and time */
   fflush(stdin);

    printf("Enter arrival info.\n");
    while(i==0)
    {
        printf("Enter month, date, hour and minute separated by spaces>\n");
        scanf(" %d",&temp_flight.arrival_dt.month);
        scanf(" %d",&temp_flight.arrival_dt.day);
        scanf(" %d",&temp_flight.arrival_dt.hour);
        scanf(" %d",&temp_flight.arrival_dt.minute);

        if(valid_input(2,temp_flight)==0)
        {
            printf("Valid date\n");
            i++;
        }
        else
        {
            printf("invalid date\n");
        }
    }
   fflush(stdin);
 return temp_flight;
}