Fixing error with pointer

pointer_fix.cpp

#include <iostream>
using namespace std;

class Person
{

public:
    string name;
    int age;
    double height;
    double weight;
};

void ModifyPerson(Person *pOne);

int main() {
    // Person 1
    Person person1;
    person1.name="Tom";
    person1.age=25;
    person1.height=175.0;
    person1.weight=120.8;

    // pOne
    Person *pOne = new Person;
    *pOne = person1;
    
    
    cout << person1.name <<endl;
    ModifyPerson(pOne);
    person1=*pOne;
    cout << person1.name <<endl;
    return 0;
}

void ModifyPerson(Person *pOne)
{
    // Create a person pointer.
    Person *person1;
    // Put the memory location from pone into person1.
    person1 = pOne;
    // Manipulate data at that memory location
    person1->name = "Tomnew";
    cout << "in ModifyPerson():" << person1->name << endl;
}