public static int listMenu(TravelAgent agent){
		System.out.print("---- Travel Console - " + agent.name + " - List Menu ----" + "\n" +
						"1) List customers \n" +
						"2) List flights \n" +
						"3) List movies \n" +
						"4) Return to main menu \n" +
						">>: ");
		int userChoice = input.nextInt();
		if (userChoice == 1) {
			listCustomers(agent);
		}
		else if (userChoice == 2){
			listFlights(agent);
		}
		else if (userChoice == 3){
			listMovies(agent);
		}
		else if (userChoice == 4){
			mainMenu(agent);
		}
		return userChoice;
	}