help on input for console application

int _tmain(int argc, _TCHAR* argv[])
{
	std::string Server, UserName, Password;
	int Port=0;
	
	////////////		GET SERVER NAME     ////////////////////
	cout << "\n\n\n\nPlease enter Server name or IP: ";
	getline (cin, Server);
	if (Server.length()==0) goto exit;
	bool hasSpace =false; int i=0;
	while( i < Server.length())  {
		if(Server[i++] == ' ') hasSpace = true;  //whatever 
	}
	if (hasSpace)
	{
		cout << "\nError: Server name cannot contain spaces!\n\n";
		goto wait_exit;
	}


	////////////		GET PORT NUMBER     ////////////////////
	cout << "\nServer Port number: ";
	cin >> Port;
	if (Port==0) goto exit;
	if (Port <0)
	{
		cout << "\nError: Port number cannot be negative!\n\n";
		goto wait_exit;
	}
	if (Port >99000)
	{
		cout << "\nError: Port number cannot out of range! Maximum port number 99000.\n\n";
		goto wait_exit;
	}
	
	////////////		GET USER NAME     ////////////////////
	cout << "\n\n\n\nPlease enter User name: ";
	getline (cin, UserName); //misses this
	if (UserName.length()==0) goto exit;


//does not come to here

wait_exit:
	printf("\n");
	system("pause");
exit:
	return 0;

getline (cin, UserName);