How would I prompt the user to give them the option to rerun program in C++ -

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the option like: "to run program again enter 'y', exit enter 'n'. in program ask user enter package a,b, or c. calculate price based on different factors. have give user option select package rerun entire program?

#include <iostream>  using namespace std;  int main() { bool finished = false; char choice; int choice_a = 995; int choice_b = 1995; int choice_c = 3995; int message_units; int price; bool selected = false;  {      {          //prompt user enter package         cout << "which package choose (enter a, b or c)" << endl;          cin >> choice;          if (choice == 'a') { price = choice_a; selected = true; }         else if (choice == 'b') { price = choice_b; selected = true; }         else if (choice == 'c') { price = choice_c; selected = true; }         cout << endl;     }      while (selected == false);             //prompt user enter message units     cout << "how many message units (enter 1 - 672)" << endl;      cin >> message_units;             //calculate message units     if((message_units > 5) && (choice == 'a')){         price += 100 * (message_units - 5);     }       if((message_units > 15) && (choice == 'b')){         price += 50 * (message_units - 15);     }                        //total cost     cout << "your total cost " << price/100 << "." << price%100 <<  

#include <iostream>  using namespace std;  int main() {     bool finished = false;     char choice;     int choice_a = 995;     int choice_b = 1995;     int choice_c = 3995;     int message_units;     int price;     bool selected = false;     char rerunp;  rerunprog:     {         {          //prompt user enter package             cout << "which package choose (enter a, b or c)" << endl;             cin >> choice;              if (choice == 'a') { price = choice_a; selected = true; }             else if (choice == 'b') { price = choice_b; selected = true; }             else if (choice == 'c') { price = choice_c; selected = true; }             cout << endl;         }         while (selected == false);          //prompt user enter message units         cout << "how many message units (enter 1 - 672)" << endl;         cin >> message_units;          //calculate message units         if((message_units > 5) && (choice == 'a')){             price += 100 * (message_units - 5);         }         if((message_units > 15) && (choice == 'b')){             price += 50 * (message_units - 15);         }          cout<<"do want run again?(y/n)";         cin >> rerunp;         while(rerunp == 'y')             goto rerunprog;          //total cost         cout << "your total cost " << price/100 << "." << price%100 << ;          cout<<"do want run again?(y/n)";         cin >> rerunp;         while(rerunp == 'y')             goto rerunprog;

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