Нужно объявить вывод нескольких строк в заголовочном

/*header file*/
#pragma once
#include <iostream> 
using namespace std;
void siska()
{
string a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p;
 
p = "Hello, how are you? That`s great to hear your voice!";
//a = cout <<"They do not!"<<endl; 
b = "They do to!";
c = "I hope so."  ;
d = "She okay?"  ;
e = "Let's go." ;
f = "Wow"  ;
g = "Okay -- you're gonna need to learn how to lie."  ;
h = "No"  ;
 /*cout << "I'm kidding.  You know how sometimes you just become this persona?  And you don't know how to quit?" << endl;
    cout << "Like my fear of wearing pastels?" << endl;
    cout << "The real you." << endl;
    cout << "What good stuff?" << endl;
    cout << "I figured you'd get to the good stuff eventually." << endl;
    cout << "Thank God!  If I had to hear one more story about your coiffure..." << endl;
    cout << "Me.  This endless ...blonde babble. I'm like, boring myself." << endl;
    cout << "What crap?" << endl;
    cout << "do you listen to this crap?" << endl;
    cout << "No..." << endl;
    cout << "Then Guillermo says, If you go any lighter, you're gonna look like an extra on 90210."<<endl;
    cout << "You always been this selfish?" << endl;
    cout << "But" << endl;
    cout << "Then that's all you had to say." << endl;
    cout << "Well, no..." << endl;
    cout << "You never wanted to go out with 'me, did you?" << endl;
    cout << "I was?" << endl;
    cout << "I looked for you back at the party, but you always seemed to be occupied." << endl;
    cout << "Tons" << endl;
    cout << "Have fun tonight?" << endl;
    cout << "I believe we share an art instructor" << endl;
    cout << "You know Chastity?" << endl;
    cout << "Looks like things worked out tonight, huh?" << endl;*/
}

#include <iostream> 
#include <string>
#include "Header.h"
using namespace std;
int main()
{
    void siska();
    {
        string a;
        string a1, a2, a3, a4, a5, a6;
 
        cin >> a1;
        if ((a1 == "Hello") || (a1 == "Privet") || (a1 == "privet") || (a1 == "zdarova") || (a1 == "hey"))
        {
            cout << p;// p объявлен в заголовке, нужно чтобы выводил текст, прописанный там.
        }
        system("pause");
        return 0;
    }
}

*header file*/
#pragma once
#include <iostream> 
using namespace std;
string a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p;
 
p = "Hello, how are you? That`s great to hear your voice!";
//a = cout <<"They do not!"<<endl; 
b = "They do to!";
c = "I hope so."  ;
d = "She okay?"  ;
e = "Let's go." ;
f = "Wow"  ;
g = "Okay -- you're gonna need to learn how to lie."  ;
h = "No"  ;
 /*cout << "I'm kidding.  You know how sometimes you just become this persona?  And you don't know how to quit?" << endl;
    cout << "Like my fear of wearing pastels?" << endl;
    cout << "The real you." << endl;
    cout << "What good stuff?" << endl;
    cout << "I figured you'd get to the good stuff eventually." << endl;
    cout << "Thank God!  If I had to hear one more story about your coiffure..." << endl;
    cout << "Me.  This endless ...blonde babble. I'm like, boring myself." << endl;
    cout << "What crap?" << endl;
    cout << "do you listen to this crap?" << endl;
    cout << "No..." << endl;
    cout << "Then Guillermo says, If you go any lighter, you're gonna look like an extra on 90210."<<endl;
    cout << "You always been this selfish?" << endl;
    cout << "But" << endl;
    cout << "Then that's all you had to say." << endl;
    cout << "Well, no..." << endl;
    cout << "You never wanted to go out with 'me, did you?" << endl;
    cout << "I was?" << endl;
    cout << "I looked for you back at the party, but you always seemed to be occupied." << endl;
    cout << "Tons" << endl;
    cout << "Have fun tonight?" << endl;
    cout << "I believe we share an art instructor" << endl;
    cout << "You know Chastity?" << endl;
    cout << "Looks like things worked out tonight, huh?" << endl;*/
    void siska(string ANS) {
  if (ANS == "Hi") { // и так далее
      cout << p;
   }
}

int main () {
   string s;
   cin >> s;
   siska(s);
   return 0;
}