How do I exit the loop?

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C++14

I created a C++ program to compute a student's average grade. The first part works, but when I type "done" to exit, my program goes through an infinite loop and won't stop producing numbers.

Here is my code:

#include <iostream>

using namespace std ;

void studentGrade (string) ;

int main ()
{
	string name ;
	int scoreOne, scoreTwo, scoreThree, scoreFour, scoreFive, scoreSix, scoreSeven, scoreEight, scoreNine, scoreTen ;
	float average = 0 ;			//stores the average of all grades
	float total = 0 ;			//stores sum of grades
	char letterGrade ;			//stores the final letter grade of student
	name = "zero" ;
	studentGrade (name) ;
	
}
void studentGrade (string name)
{
	int scoreOne, scoreTwo, scoreThree, scoreFour, scoreFive, scoreSix, scoreSeven, scoreEight, scoreNine, scoreTen ;
	char letterGrade ;
	float average = 0 ;
	float total = 0 ;
	while (name != "done")
	{
		cout << "Enter student's name." << endl ;
		getline (cin, name) ;
		cin.ignore () ;
		if (name != "done")
		{
			cout << "Enter " << name << "'s 10 test scores." ;
			cin >> scoreOne >> scoreTwo >> scoreThree >> scoreFour >> scoreFive >> scoreSix >> scoreSeven >> scoreEight >> scoreNine >> scoreTen ;
			total = scoreOne + scoreTwo + scoreThree + scoreFour + scoreFive + scoreSix + scoreSeven + scoreEight + scoreNine + scoreTen ;
			average = total / 10 ;
			if (average > 89.5)
				letterGrade = 'A' ;
			else if (average > 79.5)
				letterGrade = 'B' ;
			else if (average > 69.5)
				letterGrade = 'C' ;
			else if (average > 59.5)
				letterGrade = 'D' ;
			else
			letterGrade = 'F' ;
		cout << "Student's name: " << name << endl ;
		cout << "Average Grade: " << average << endl ;
		cout << "Letter Grade: " << letterGrade << endl ;
		name = "zero" ;
		}
		else
			cout << "All student's done." << endl ;
	}
	cout << "All student's done." << endl ;
}

What I have tried:

When I type names, the program works properly, but when I enter "done" to exit, it doesn't. I was just wondering if I am missing something to exit the loop or if I didn't do something right. Thank you for helping!