If ID code hasn't been entered - Attendance Sytem

What I want to do is, if someone hasn't entered their ID code, it will print absent in a file. I'm not sure where to implement this in my code though. The full code is below, also if any corrections needed, feel free to critique.

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <errno.h>


typedef struct record {
  char *fname;
  char *lname;
  int code;
} information;


int main (void) {
  char ffname[28], flname[28], ans, ans1, status[15];
  int fID, i, j, id_, x, count;
  FILE *kfile, *ufile;
  x = 0;
  j = 0;
  i = 0;
  count = 0;

  char buf[150];
  time_t curtime;
  struct tm* loc_time;
  information array[100];

  printf("          **********Attendance Recording System**********\n");
  printf("                                 MENU                     \n");
//Getting current time of system
  curtime = time (NULL);
// Converting current time to local time
  loc_time = localtime (&curtime);
  strftime (buf,150, "%I:%M %p.\n", loc_time);


//prints error message if file cannot be found within the system

    if ((kfile = fopen("information.txt", "r")) == NULL)    //If the file path is incorrect, an error message is displayed
    {
        fprintf(stderr, "Error while opening file  (%d: %s)\n",errno, strerror(errno)); //Error message that will be displayed if file path is incorrect

        return;
    }

    //while the file is opened and not at the end, the strings are stored into variables which forms an array of strings
     for (x = 0; x < 200; x++) {
      if (fscanf(kfile, "%s %s %d", ffname, flname, &fID) != 3)  //Reads the contents of the file
      break;
      array[x].fname = strdup(ffname);
      array[x].lname = strdup(flname);
      array[x].code = fID;
    }
    fclose(kfile);

     ufile= fopen("C:\\Users\\Student\\Desktop\\update.txt","w");
     fprintf(ufile,"First Name     Last Name     ID     Status     Time Arrived");

    while (j < x){
    Next:
  printf("Please enter your ID: ");
  scanf("%d", &id_);

  for (i = 0; i < x; i++) {



  if(array[i].code == id_){

      printf("Are you %s %s?\n", array[i].fname, array[i].lname);
      printf("[y/n only]: ");
      scanf(" %c", &ans);

      switch (ans){
      case 'y':
        strcpy(status, "Present");
            if((int)buf < ((int)"08:00" )){
                printf("Early.\n");

            }
            else{   
                printf("You are late for school.\n");
            }


            printf("Continue?\n[y/n only]:");
            scanf(" %c", &ans1);

            fprintf(ufile,"\n");
                printf("You are early for school.\n");
                fprintf(ufile,"%-15s%-14s%2d%12s ",array[i].fname, array[i].lname, array[i].code, status);
                fprintf(ufile,"%16s",(buf));


            if(ans1 == 'y'){
            break;
        case 'n':
            goto Next;
            break;
            default:
                printf("invalid answer");
            }
            if (ans1 == 'n'){
            exit(EXIT_SUCCESS);
            }
        }



}
    }

    j++;

}
  fclose(ufile);

  getch();
  return 0;
}