std::cin input being skipped?

Some input is being skipped and it sets the variable to null or empty or something. Here is the relevant code

short int bindedPort;

//prompt for the port
std::cout<<"What port would you like to bind to?"<<std::flush;
std::cin >> bindedPort;
std::cout << std::endl;

 std::cin.ignore( std::numeric_limits<std::streamsize>::max(), '\n' );

// Let the server know this client is connected
std::string ID;
std::cout<<"\nEnter an ID: "<<std::flush;
ID = std::cin.get();

The first cin works but the second one is skipped and an empty string is sent to the server. Can someone help me?