Hello please help with my homework. In c++ I have a slight bug for my getline(cin,dep_city)

I'm not sure why it is not taking input when I compile I added comments to see the error quicker.

Please help thank you

#include

#include

using namespace std;

int main() {

int first_class;

int business_class;

int economy_class;

string destination_city, dep_city;

// a = the crew and the pilot on board.

int total_passengers;

int a = 5;

int b = 205;

int c = 100;

double percentage;

cout << "How many first class passengers are boarding: ";

cin >> first_class;

cout << "How many business class passengers are boarding: ";

cin >> business_class;

cout << "How many economy class passengers are boarding: ";

cin >> economy_class;

std::cout << "Enter departure_city: "<

std::getline(std::cin, dep_city); // not taking input

cout << "Enter destination city: ";

getline(cin, destination_city);

std::cout << destination_city << std::endl;

total_passengers = first_class + business_class + economy_class;

percentage = (total_passengers / b) * c;

cout << "The flight from " << dep_city << " to " << destination_city

<< " will have " << total_passengers << " passengers "

<< " (" << a + total_passengers << " souls on board)"

<< " and will be" << percentage << "full" << endl;

return 0;

}