How to make program check one thing c++

I'm making a beginner guess the number in Microsoft Visual Studio 2015. How do I make it say something else if the guessed number is not the same as the randomly generated number? When I run the program and guess, It says both of the "if << cout." Could I have some help, I never really got the whole "if else" statements.

#include <iostream>
#include <ctime>
#include <random>
#include <string>

using namespace std;

int main() {

int guessNumber;
int guess;

mt19937 numGen(time(NULL));

uniform_int_distribution<int> findNum(1, 10);

cout << "Welcome to Guess the Number\n" << endl << "Your Guess : ";
cin >> guess;

if (guess = findNum(numGen)) {
    cout << "\nNice Job" << endl;
}

else if (guess != findNum(numGen)) {
    cout << "\nGood Try" << endl;
}

system("PAUSE");
return 0;
}