Why does not my code do input validation upon a string getting entered?

I have been trying to get a bug fixed. which is based on upon when a user inputs a number instead of a string as a name for the user. the program loops, i have been trying to implement Cin.reset and cin.ignore(numeric_limits::max(),’\n’);. But it does not work, i did this in a while loop, but all forsaken.

Down below is my code:

#include "stdafx.h"
#include "pch.h"
#include <iostream>
#include <cstdlib>
#include <iomanip>
#include <ctime>
#include <string>
#include <stdlib.h>

using namespace std;

int main() {
    string Yes;
    int bet;
    int color;
    string name;
    string answer;
    //string choice;
    int age;
    char choice, colour;
    int yes;
    int no;
    int konto = 1000;
    int number;
    int rand_number;

    cout << "Hello and welcome to Roulette House" << endl;


    cout << "What is Your name:" << endl;
    cin >> name;
    cout << "Your name is: \t" << name << endl;
    while (!(cin >> name)) {
        cin.reset();
        cin.ignore(numeric_limits<streamsize>::max(), ’\n’);
        cout << "please write only characters" << endl;
        cin >> name;

    }
    cout << "Do you want to start the game?" << endl;''

    cout << "please write yes or no?" << endl;
    cin >> answer;

    if (answer != "yes") {
        cout << "ok thanks for stepping by" << "!!!!!" << endl;
        return 0;
    }

    cout << "welcome" << endl;
    cout << "This is the rules of the game: You must be 18 or over to play this game!" << endl;
    cout << "As a bonus you will start the game with 1000kr" << endl;

    cout << "you have" << konto << "kr in your account" << endl;

    cout << "How old are you?";
    cin >> age;

    if (age >= 18)
    {
        cout << "you are allowed to play" << endl;
    }
    else
    {
        cout << "sorry your are to young to play" << endl;
        return (0);
    }


    while (true)
    {
        cout << "Place your bet. Remember you can only bet 100kr,300kr and 500kr" << endl;
        cin >> bet;

        while (bet != 100 && bet != 300 && bet != 500) {
            cout << "please choose between 100 or 300 or 500" << endl;
            cin >> bet;
        }

        while (true)
        {
            cout << "You can choose one of the options, c (color)  or n (number)?" << endl;
            cin >> choice;

            if (choice != 'c' && choice != 'C' && choice != 'n' && choice != 'N') {
                break;
            }
        }

        if (toupper(choice) == 'N') {

            cout << "choose a number between 1 and 36" << endl;
            cin >> number;

            while (number < 1 || number > 36) {
                cout << "Enter a number between 1 and 36" << endl;
                cin >> number;
            }


            srand(time(0));
            rand_number = rand() % 36 + 1;

            cout << "the winning number is" << rand_number << "." << endl;

            if (choice == 'N' && number != rand_number)

                cout << "You lost $" << 1*bet << endl;
            }
            else {

                cout << "You win!" << endl;
            }
        }
        else if (choice == 'c' || choice == 'C')
        {
            colour = ' ';

            while (colour != 'b' && colour != 'r')
            {
                cout << "color b (black) or r (red)" << endl;
                cin >> colour;

                if (colour == 'b') {
                    cout << "you choosed black" << endl;
                }
                else if (colour == 'r') {
                    cout << "you choosed red" << endl;
                }
            }
            char colors[2] = { 'b', 'r' };
            int rand_index = rand() % 2;
            if (colors[rand_index] == colour) {
                cout << "You won!" << endl;
            }
            else {
                cout << "You lost!" << endl;
            }
        }

        cout << "Bet again yes or no?" << endl;
        cin >> answer;

        if (answer != "yes") {
            cout << "ok thanks for stepping by" << "!!!!!" << endl;
            return 0;
        }
    }
    return 0;
}

Thank you for youre time and i will appreciate all feedback given.