create a ChatGpt clone

void chatbot() {
  while(true) {
    string userinput;
    getline(cin, userinput);
    
    if(userinput == "hello")
      cout << "Hello!" << endl;
    else if(userinput == "why are you so stupid?")
      cout << "because i am a bot" << endl;
    else
      cout << "i dont understand" << endl;
  }
}