c++ input stream not waiting for input with extraction operator overload

Question

This problem is annoying me. Instead of waiting for input, it just closes. I've been trying to figure this out for a while now. Any ideas?

    istream& operator>>(istream& is, Account &a) {
    cout << "Enter an accoutn number: ";
        is >> a.accountNo;
        cout << endl;
    cout << "Balance: ";
        is >> a.bal;
    return is;
    }

Answer 1

When I put it into the following program, it worked fine (though it wouldn't work so well if you tried to read an account from anything but std::cin):

#include <iostream>

struct Account { 
    int accountNo;
    int bal;
};

using std::ostream;
using std::istream;
using std::cout;
using std::endl;

istream& operator>>(istream& is, Account &a) {
    cout << "Enter an account number: ";
    is >> a.accountNo;
    cout << endl;
    cout << "Balance: ";
    is >> a.bal;
    return is;
}

ostream &operator<<(ostream &os, Account const &a) { 
    return os << "Account #: " << a.accountNo << "\tBalance: " << a.bal;
}

int main() { 
    Account a;
    std::cin >> a;

    std::cout << a;
    return 0;
}