what wrong with my Javascript code?

var correctGuess = false;

var randomNumber = Math.floor(Math.random() * 6 ) + 1;

var guess = prompt('I am thinking of a number between 1 and 6. What is it?');
if (parseInt(guess) === randomNumber ) {
  correctGuess = true;

} else if(parseInt(guess) < randomNumber){
  var guessMore = prompt('try again. I think the number is greater than '+ guess);
  if(parseInt(guessMore) === randomNumber){
      correctGuess= true; 
  }  
}else if(parseInt(guess) > randomNumber) {
   var guessLess = prompt('try again. I think the number is smaller than '+ guess);
  if(parseInt(guessLess) === randomNumber){
      correctGuess= true; 
}

if ( correctGuess ) {
    document.write('<p>You guessed the number!</p>');
} else {
    document.write('<p>Sorry. The number was ' + randomNumber + '.</p>');
}