C++函数无论输入都会运行

下面代码的问题是，无论控制台中的输入是什么，所有函数都像true一样运行。例如，我可以输入"vvvvvcvvvv"，然后输出"你好"answers"非常感谢"。就好像函数的参数无关紧要。

#include <windows.h>
#include <iostream>
#include <string>
#include <chrono>
#include <thread>
void main() 
{
void confirmChk(bool &confirm);
bool confirm = false;
void greetingChk(bool &greeting);
bool greeting = false;
void questionChk(bool &question);
bool question = false;
void youChk(bool &you);
bool you = false;
std::string text;
std::getline(std::cin, text);
    for (int read = 0; read < text.length(); read++)
    {
        greetingChk(greeting);
        if (greeting = true);
        {
            youChk(you);
            if (you = true);
                {
                    std::cout<<"hello" <<std::endl;
                }
        }
        questionChk(question);
        if (question = true);
        {
            youChk(you);
            if (you = true);
            {
                std::cout<<"good thank you" <<std::endl;
            }
        }
    std::chrono::milliseconds dura(2000);
    std::this_thread::sleep_for(dura);
    system("cls");
    }
}
//////////////////Functions//////////////////
void greetingChk(bool &greeting)
{
    std::string text;
    std::getline(std::cin, text);
    if(text.find("hi ") != std::string::npos ||
       text.find("hello ") != std::string::npos ||
       text.find("hey ") != std::string::npos ||
       text.find("yo ") != std::string::npos || 
       text.find("sup ") != std::string::npos ||
       text.find("howdy ") != std::string::npos ||
       text.find("wazzup ") != std::string::npos ||
       text.find("hiya ") != std::string::npos)
            {
                greeting = true;
            }
    else
            { 
                greeting = false;
            }
}
void youChk(bool &you)
{
    std::string text;
    std::getline(std::cin, text);
    if(text.find("ya ") != std::string::npos ||
       text.find("you ") != std::string::npos ||
       text.find("yah ") != std::string::npos ||
       text.find("yall ") != std::string::npos || 
       text.find("you're ") != std::string::npos)
            {
                you = true;
            }
    else
            { 
                you = false;
            }
}
void questionChk(bool &question)
{
    std::string text;
    std::getline(std::cin, text);
    if(text.find("are") != std::string::npos ||
       text.find("am") != std::string::npos ||
       text.find("can") != std::string::npos ||
       text.find("could") != std::string::npos ||
       text.find("do") != std::string::npos ||
       text.find("does") != std::string::npos ||
       text.find("did") != std::string::npos ||
       text.find("has") != std::string::npos ||
       text.find("had") != std::string::npos ||
       text.find("have") != std::string::npos ||
       text.find("is") != std::string::npos ||
       text.find("may") != std::string::npos ||
       text.find("might") != std::string::npos ||
       text.find("shall") != std::string::npos ||
       text.find("should") != std::string::npos ||
       text.find("was") != std::string::npos ||
       text.find("would") != std::string::npos ||
       text.find("were") != std::string::npos)
            {
                question = true;
            }
    else
            { 
                question = false;
            }
}
void confirmChk(bool &confirm)
{
    std::string text;
    std::getline(std::cin, text);
    if(text.find("ok") != std::string::npos ||
       text.find("yup") != std::string::npos ||
       text.find("yes") != std::string::npos ||
       text.find("affirm") != std::string::npos ||
       text.find("affirmative") != std::string::npos ||
       text.find("confirm") != std::string::npos ||
       text.find("confirmed") != std::string::npos ||
       text.find("confirming") != std::string::npos ||
       text.find("endorse") != std::string::npos ||
       text.find("endorsed") != std::string::npos ||
       text.find("approve") != std::string::npos ||
       text.find("approved") != std::string::npos ||
       text.find("approving") != std::string::npos ||
       text.find("of course") != std::string::npos ||
       text.find("got it") != std::string::npos ||
       text.find("will do") != std::string::npos ||
       text.find("alright") != std::string::npos ||
       text.find("fine") != std::string::npos ||
       text.find("varify") != std::string::npos ||
       text.find("ratify") != std::string::npos ||
       text.find("validate") != std::string::npos ||
       text.find("understood") != std::string::npos ||
       text.find("justify") != std::string::npos)
            {
                confirm = true;
            }
    else
            { 
                confirm = false;
            }
}