Prob5 Unfinished

#include <iostream>
using namespace std;

int main (){
    char selection, response = 'Y';
    float balance = 10500.00, withdraw, deposit;

    while (response=='y' || response=='Y') {
    system("cls");
    cout << "Automated Teller Machine \n";
    cout << "--------------------------- \n";
    cout << "[B]alance Inquiry \n";
    cout << "[W]ithdraw \n";
    cout << "[D]eposit \n";
    cout << "--------------------------- \n";
    cout << "Enter Selection : ";
    cin >> selection;
    system("cls");

    if (selection=='B' || selection == 'b') {

        cout << "Automated Teller Machine \n";
        cout << "--------------------------- \n";
        cout << "Balance Inquiry Module \n\n";
        cout << "Current Balance: " << balance << ".00" << "\n";
        cout << "--------------------------- \n";
        cout << "Request Processed! \n";
        cout << "--------------------------- \n";
        cout << "Transact Again? [Y/N]: ";
        cin >> response;
        cout << "--------------------------- \n";

     } else if (selection=='W' || selection == 'w') {


        cout << "Automated Teller Machine \n";
        cout << "--------------------------- \n";
        cout << "Withdraw Module \n\n";
        cout << "Withdraw Amount: ";
        cin >> withdraw;
        balance = balance - withdraw;
        cout << "--------------------------- \n";
        cout << "Current Balance: " << balance << ".00" << "\n";
        cout << "--------------------------- \n";
        cout << "Transact Again? [Y/N]: ";
        cin >> response;
        cout << "--------------------------- \n";

     } else if (selection=='D' || selection == 'd') {


        cout << "Automated Teller Machine \n";
        cout << "--------------------------- \n";
        cout << "Deposit Module \n\n";
        cout << "Deposit Amount: ";
        cin >> deposit;
        balance = balance + deposit;
        cout << "--------------------------- \n";
        cout << "Current Balance: " << balance << ".00" << "\n";
        cout << "--------------------------- \n";
        cout << "Transact Again? [Y/N]: ";
        cin >> response;
        cout << "--------------------------- \n";

    } else {

        cout << "Automated Teller Machine \n";
        cout << "--------------------------- \n\n";
        cout << "Transaction Terminated \n\n";
        cout << "--------------------------- \n";
        cout << "Account De-activated! \n";
        cout << "--------------------------- \n\n";
        cout << "Transact Again? [Y/N]: ";
        cin >> response;
    } }

     system("cls");
        cout << "Automated Teller Machine \n";
        cout << "--------------------------- \n\n";
        cout << "Transaction Terminated! \n\n";
        cout << "--------------------------- \n";
        cout << "Process Ended... \n";
        cout << "--------------------------- \n\n";

    return 0;
}