Code:
/*******************************************************        
 * Purpose:  Design an airline reservation structure that contains the following data:
 *  
 * Flight Number
 * Originating Airport Code (3 characters)
 * Destination Airport Code (3 characters)
 * Starting time
 * Arrival time
***************************************************************/
#include <stdio.h>

struct itinerary
{
    int flight;                         /* Flight number                */
    char origin_airport[3];             /* Airport of origin            */
    char dest_airport[3];               /* Destination airport          */
    int start_time;                     /* Time of start of flight      */
    int arrival_time;                   /* Time of arrival              */
};

#define MAX_ENTRIES 50                  /* Max number of stucts to create       */
struct itinerary list[MAX_ENTRIES];     /* Array of structures for data         */
void print_itinerary(int counter);      /* Prototype for printing out info      */


int main()
{
    char line[10];                      /* Input from the user                  */
    int counter = 0;                    /* Counter for loop starts at zero      */
 char quit;                          /* Variable used to exit loop           */

    while(counter <= MAX_ENTRIES)
    {

        printf("Enter the flight number: ");
        fgets(line, sizeof(line), stdin);
        sscanf(line, "%d", &list[counter].flight);

        printf("Enter the airport origin: ");
        fgets(line, sizeof(line), stdin);
        sscanf(line, "%s", &list[counter].origin_airport);

        printf("Enter the destination airport: ");
        fgets(line, sizeof(line), stdin);
        sscanf(line, "%s", &list[counter].dest_airport);

        printf("Enter the start time: ");
        fgets(line, sizeof(line), stdin);
        sscanf(line, "%d", &list[counter].start_time);

        printf("Enter the arrival time: ");
        fgets(line, sizeof(line), stdin);
        sscanf(line, "%d", &list[counter].arrival_time);

        printf("Do you wish to enter another flight? (<enter>=yes or n=no) ");
        fgets(line, sizeof(line), stdin);
        sscanf(line, "%c", &quit);
        if(quit == 'n')
            break;

        ++counter;

    }

    print_itinerary(counter);

    return(0);
}

void print_itinerary(int counter)
{
    int index = 0;              /* Index to cycle through the program   */

    while(index <= counter)
    {
        printf("Flight:             %d \n", list[index].flight);
        printf("Origin Airport:     %s \n", list[index].origin_airport);
        printf("Desination Airport  %s \n", list[index].dest_airport);
        printf("Start:              %d \n", list[index].start_time);
        printf("Arrive:             %d \n", list[index].arrival_time);
        printf("\n");

        ++index;
    }

    return;
}
Two questions:

1) Why do I have to use '#define' instead of 'const int' I get an error message with 'const int':

error: variable-size type declared outside of any function 'const int'

$gcc --version

gcc (GCC) 3.4.2 [FreeBSD] 20040728

2) The print to screen output I get is:

Enter the flight number: 110
Enter the airport origin: TLH
Enter the destination airport: SEA
Enter the start time: 1110
Enter the arrival time: 1230
Do you wish to enter another flight? (<enter>=yes or n=no) n
Flight: 110
Origin Airport: TLHSEA
Desination Airport SEA
Start: 1110
Arrive: 1230

As you can see I get TLH and SEA put together in the ouput to screen. This may be obvious to you guys.

Thanks in advance for any and all help.