Program That Prints Full Name From First and Last Name

#include <iostream>
#include <string>
using namespace std;

int main() {

    string firstname, lastname, fullname;

    cout << "Please enter your first name: ";
    cin >> firstname;
    cout << "Please enter your last name: ";
    cin >> lastname;
    fullname = firstname + " " + lastname;
    cout << "Your full name is " << fullname << endl;
    system("pause");
}

Result:
Please enter your first name: Ivan
Please enter your last name: Widyan
Your full name is Ivan Widyan