Задача с учебника: создать список пассажиров самолета

#include <iostream>
#include <string>
#include <vector>
#include <iterator>
using namespace std;
class Traveler
{
    string name;
    string fname;
    string adress;
    string numPlace;
    string typePlane;
    string timeFlight;
    string flight;
    int age;
    public:
    ////////////////////////////////////////////////////////////////////////////////
    Traveler(const string & name_ = "Null",const string & fname_ = "Null",const string & adress_ = "Null",const string & numPlace_ = "Null",
    const string & typePlane_ = "Null",const string & timeFlight_ = "Null",const string & flight_ = "Null", int age_ = 0):
    name(name_),fname(fname_),adress(adress_),numPlace(numPlace_),typePlane(typePlane_),timeFlight(timeFlight_),flight(flight_), age(age_){}
    ////////////////////////////////////////////////////////////////////////////////
    bool setTraveler()
    {
        cout << "Enter traveler (q to exit):\n";
        cout<< "name: ";
        cin >> name;
        if (name == "q")
        return false;
        cout<< "fname: ";
        cin >> fname;
        cout<< "adress: ";
        cin >> adress;
        cout<< "numPlace: ";
        cin >> numPlace;
        cout<< "typePlane: ";
        cin >> typePlane;
        cout<< "timeFlight: ";
        cin >> timeFlight;
        cout<< "flight: ";
        cin >> flight;
        cout<< "age: ";
        cin >> age;
        return true;
    }
    ////////////////////////////////////////////////////////////////////////////////
    int GetAge()
    {
        return age;
    }
    ////////////////////////////////////////////////////////////////////////////////
    string GetFlight()
    {
        return flight;
    }
};
int main()
{
    vector<Traveler>arr;
    Traveler temp;
    while(temp.setTraveler())
    {
        arr.push_back(temp);
        cout << "succes\n";
    }
    int severalAge = 0, people = 0;
    string searchFlight;
    cout << "Find flight: ";
    cin >> searchFlight;
    auto it = arr.begin();
    for(auto it = arr.begin(); it != arr.end(); it++ )
    {
        if((*it).GetFlight() == searchFlight)
        {
            severalAge += (*it).GetAge();
            people++;
        }
    }
    cout << people << " travelers and " << int(severalAge / people + 0.5) << " several age of " << searchFlight;
    return 0;
}