Pin Authentication/ reading specific lines *help*

[Reekoh]

Hi there all. I would just like to ask a question regarding reading specific lines from a file with the use of a "PIN number" keyword. After authentication would then use the following lines for name and account_type for print_account() to use.

This code is what I've been using to test out ideas for a bigger scale project
of mine, related to "banking accounts". Also a big problem of mine is using a Pin authentication

here is the txt file that I am using to read from

123                   //Pin code
maggie                //name
1                     //account_type

456
dan
2

789
Rikko
1

Here is the code that I am using to test my ideas out. I currently have problems doing the read_account function and the pin authentication

#include <iostream>
#include <string>
#include <fstream>
using namespace std;
//----------------------------------------------------
void Exit();
void print_account();
void create_account();
void read_account(int); 
void write_file();


string name;
int account_pin;
int account_type;
//-----------------------------------------------------
void Exit(){
cout << "\n\nThank you for using this Program!\n\n";
}

void create_account(){ //creating account
cout << "Enter Account Pin: ";
cin >> account_pin;
cin.ignore();
cout << "\nEnter Account Name: ";
getline(cin, name);
cout << "\nEnter Account type(1 for credit, 2 for savings): ";
cin >> account_type;
cout << "\n\nFinsihed creating account\n\n";
}

void print_account(){ //printing the account
cout << "Name: " << name;
cout << "Account type: " << account_type << "\n\n";
}

int main(){

int choice;
int pin; //pin authentication for account

do{
cout << "1.) Create Account\n";
cout << "2.) Print Account\n";
cout << "3.) Exit\n\n";
cout << "please enter a choice: ";
cin >> choice;
switch(choice){
	case 1:
	write_file();
	break;

	case 2:
	cout << "Enter Pin: ";
	cin >> pin;
	read_account(pin);
	break;
}
}while(choice != 3);

Exit();

return 0;
}

void write_file(){
ofstream outFile;
outFile.open("Info.txt", ios::app);
create_account();
outFile << endl;
outFile << account_pin << " ";
outFile << name << " ";
outFile << account_type << " ";
}

void read_account(int a){
ifstream inFile;
if(inFile.is_open()){

}
}

if there are any unclear spots that I have stated please, I urge you to ask.
Thank you Very Much!