Error with program to continue after for it reaches the for loop

When i have reached my for loop, my program crashes and I really dont know what else to do. Im making an attendance record system that will prompt the user to enter there ID. Program will search a file containing their information and search for the ID entered. After it has found it, the program should ask a series of questions. After all have completed, the loop should begin again for another student. Below is a snippet of the main code.

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

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

int main (void) {
  char ffname[28], flname[28], ans;
  int fID, i, id_;
  information array[3];
  FILE *kfile;

  i = 0;

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

   //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("C:\\Users\\keneil\\Desktop\\information.txt","r")) == NULL) {
    perror("Error while opening file");
  } else {
    //while the file is opened and not at the end, the strings are stored into variables which forms an array of strings
    while (!feof(kfile)) {
      fscanf(kfile, "%s %s %d", ffname, flname, &fID);
      array[i].fname = strdup(ffname);
      array[i].lname = strdup(flname);
      array[i].code = fID;
      i++;
    }
    fclose(kfile);
  }

    Next:   
  printf("Please enter your ID: ");
  scanf("%d", &id_);

  for (i = 0; i < 3; i++) {

  //printf("\n");

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

      switch (ans){
      case 'y':
            if((int)buf < ((int)"08:00" )){
                printf("You are early for school.");
                }
            else{   
                printf("You are late for school.");
                system("cls");
            }
            break;
        case 'n':
            system ("cls");
            goto Next;
            break;
            default:
                printf("invalid answer");
            }
    }



  getch();
  return 0;
}