Code:
#include <iostream>
#include <string>

using namespace std;

int dan ();

int main()
{
	//Let's call our function
	dan ();	
	return 0;
}

int dan ()
{
	string mystr;

	std::cout << "What's your name? ";
	getline (cin, mystr);
	if (mystr == "dan"/*String literals come in quotes"*/)
		cout << "My name is" << mystr << "too";
	
	std::cout << "Hello " << mystr << ".\n";
	std::cout << "What is your favorite team? ";
	getline (cin, mystr);
	std::cout << "I like " << mystr << " too!" "\n" << std::endl;
	
	std::cout << "My name is Dan and i'm starting using C++!" "\n" << std::endl;
	std::cout << "Look forward to see more Programming from me :D." "\n" << std::endl;

	//No need to return int if you don't need it
	//You can make the function to be void dan ()
	return 0;
}