import java.util.*;
public class TrainTicketManagement {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int choice;
List<Train> trains = new ArrayList<>();
List<Ticket> tickets = new ArrayList<>();
do {
System.out.println("1. Add Train\n2. Book Ticket\n3. Cancel Ticket\n4. Search Train\n5. Exit");
System.out.print("Enter your choice: ");
choice = sc.nextInt();
switch (choice) {
case 1:
trains.add(addTrainDetails());
break;
case 2:
bookTicket(trains, tickets);
break;
case 3: