keep getting the error ' no match for 'operator>>' ;

I have seen numerous other questions with the same error but those are from people who haven't overloaded the >> operator. I am having this issue with a few other programs I have written all very similar to each other as they are practice questions.

I have also looked into my textbook and compared my program with their example programs and can't see where I'm going wrong.

The full error is (in main.cpp)

line 17: error: no match for 'operator>>' (operand types are 'std::ifstream {aka std::basic_ifstream}' and 'Suitcase()')|

Any and all advice is greatly appreciated.

My Header is

//suitcase.h
#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>
#ifndef SUITCASE_H
#define SUITCASE_H
using namespace std;

class Suitcase
{
public:
    Suitcase();
    Suitcase(double p,double w,double v,string s,string b);
    ~Suitcase();
    double calc_ratio();
    friend bool operator>(const Suitcase s1,const Suitcase s2);
    friend ostream& operator<<(ostream & out,const Suitcase& s);
    friend istream& operator >>(istream& in,Suitcase& s);
private:
    double price,weight,volume;
    string brand,shop;
};
#endif // SUITCASE_H

My implementation is

//suitcaseimplement.cpp
#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>
#include "suitcase.h"
using namespace std;

Suitcase::Suitcase()
{
    price=0;
    weight=0;
    volume=0;
    shop="";
    brand="";
}
Suitcase::Suitcase(double p,double w,double v,string s,string b)
{
    price=p;
    weight=w;
    volume=v;
    shop=s;
    brand=b;
}
Suitcase::~Suitcase()
{

}
double Suitcase::calc_ratio()
{
    return (volume/weight);
}
bool operator>(Suitcase s1,Suitcase s2)
{
    if(s1.calc_ratio()>s2.calc_ratio())
        return true;
}
ostream& operator<<(ostream & out,const Suitcase& s)
{
    out<<"The suitcase with the highest ratio is the "<<s.brand<<endl;
    out<<"It is available at "<<s.shop<<endl;
    out<<"It weighs "<<s.weight<<"kgs, has a volume of "<<s.volume<<"and costs R"<<s.price<<endl;

    return out;
}
istream& operator >>(istream& in,Suitcase& s)
{
    in>>s.price>>s.weight>>s.volume>>s.brand>>s.shop;
    return in;
}

and finally my main program is.

//main.cpp
#include <iostream>
#include <string>
#include <cstdlib>
#include <fstream>
#include "suitcase.h"
using namespace std;

int main()
{
    ifstream infile;
    infile.open("Suitcase.txt");
    if(infile.fail())
        exit(1);

Suitcase current_suitcase(), best_suitcase();
infile>>best_suitcase;
while(infile>>current_suitcase)
{
    if(current_suitcase>best_suitcase)
    {
        current_suitcase=best_suitcase;
    }
}
infile.close();
cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout.precision(2);
cout<<best_suitcase;
return 0;
}