Program ini looping terus. Kenapa?

#include <iostream>
#include <string>

using namespace std;

int getOption(){
	int input;
	system("cls");

	std::cout << "Program CRUD data Mahasiswa" << std::endl;
	std::cout << "===========================" << std::endl;
	std::cout << "1. Tambah data Mahasiswa" << std::endl;
	std::cout << "2. Tampilkan data Mahasiswa" << std::endl;
	std::cout << "3. Ubah data Mahasiswa" << std::endl;
	std::cout << "4. Hapus data Mahasiswa" << std::endl;
	std::cout << "5. Selesai" << std::endl;
	std::cout << "===========================" << std::endl;
	std::cout << "pilihan [1-5]? : ";
	std::cin >> input;
	return input;
}

int main(){

	int pilihan = getOption();
	char is_continue;

	enum option{CREATE = 1, READ, UPDATE, DELETE, FINISH};

	while(pilihan != FINISH){

		switch (pilihan){
			case CREATE:
				std::cout << "Menambahkan data Mahasiswa" << std::endl;
				break;
			case READ:
				std::cout << "Tampilkan data Mahasiswa" << std::endl;
				break;
			case UPDATE:
				std::cout << "Ubah data Mahasiswa" << std::endl;
				break;
			case DELETE:
				std::cout << "Hapus data Mahasiswa" << std::endl;
				break;
			default:
				std::cout << "Pilihan tidak ditemukan" << std::endl;
				break;
		}

		label_pilih:
		std::cout << "Lanjut?(y/n) : ";
		std::cin >> is_continue;
		if ((is_continue == 'y') | (is_continue == 'Y')){
			pilihan = getOption();
		}else if ((is_continue == 'n') | (is_continue == 'N')){
			break;
		}else{
			goto label_pilih;
			break;
		}

	}
	std::cout << "akhir dari Program" << std::endl;
	return 0;
}