Trying to break out of a string loop - c++

Question

Okay so I've been troubleshooting an issue I have with my "process" function below. When I submit my code, I get the correct output but my loop never ends. When I try to end the loop, I get no output. I know how to end the loop if the variable is an integer but the string is throwing me for a loop. I'm new to this, and I'm sure the solution is probably right in front of my face. Thanks for the help.
int process()
{
double price = 0;
while(true)
{
int items = 0;
string order = "";
cout << "Enter your order string: ";
cin >> order;
items = findItem(order);
if (items < 0)
{
cout << order << " is invalid. Skipping it.\n";
break;
}
cout << names[items] << ": $" << fixed << setprecision(2) << prices[items] << endl;
price += prices[items];
}
cout << "Total: $" << fixed << setprecision(2) << price;
}
#include <iostream>
#include <iomanip>
#include <fstream>
#include <sstream>
using namespace std;
const int MAXPRODUCTS = 100;
string names[MAXPRODUCTS];
double prices[MAXPRODUCTS];
string codes[MAXPRODUCTS];
int numProducts = 0;
void readConfiguration()
{
int i =0;
ifstream finput("menu.txt");
while(finput >> codes[i] >> names[i] >> prices[i])
{
i++;
numProducts = i;
}
}
//return valid index if the item is found, return -1 otherwise.
int findItem(string inputCode)
{
for(int i =0; i<numProducts; i++)
{
if(inputCode == codes[i])
return i;
}
return -1;
}
// read order string like "A1 A1 E1 E2 S1" and generate the restaurant bill.
// Output the item name and price in each line, total in the final line.
int process()
{
string order = "";
while(true)
{
int items = 0;
cout << "Enter your order string: ";
cin >> order;
items = findItem(order);
if (items < 0)
{
cout << order << " is invalid. Skipping it.\n";
continue;
}
else
cout << names[items] << ": $" << fixed << setprecision(2) << prices[items] << endl;
}
return 0;
}
int main()
{
readConfiguration();
process();
}

Answer 1

try to edit while(true) to while(cin >> order)
while(cin >> order)
{
int items = 0;
cout << "Enter your order string: ";
items = findItem(order);
if (items < 0)
{
cout << order << " is invalid. Skipping it.\n";
continue;
}
else
cout << names[items] << ": $" << fixed << setprecision(2) << prices[items] << endl;
}