Why do I get a segmentation fault when fetching this variable? - c++

Question

I am pulling names as strings from a file, create a Person *p object, and put it into an array.
Then to search the array for a name but when I try to fetch the name I get a segmentation fault.
Why is this segmentation fault happening, and what can I do to fix it?
#include <iostream>
#include <string>
using namespace std;
class Person {
private:
string firstName;
string lastName;
string phoneNumber;
public:
Person();
Person(string f, string l, string n);
~Person(void);
void setName()
{
}
string getFirstName()
{
return firstName;
}
string getLastName()
{
return lastName;
}
string getNumber() { return phoneNumber; }
void print();
};
Array creation.
{
ifstream file;
file.open("phonebook.txt");
if (!file.is_open()) //Check for File Error.
{
cerr << "Failed to open file" << endl;
exit(1);
}
//Get Array Size
string line;
while (getline(file, line))
{
count++;
}
file.close();
//Create an array
Person *arrList[count];
buildArray(arrList, count);
if (uInput == "a" || uInput == "A") //To add
{
int x = addPerson();
if (x == 1)
{
count++;
}
delete[] arrList;
}
void buildArray(Person *arr[], int size)
{
string f, l, n;
ifstream file;
file.open("phonebook.txt");
for (int i = 0; i < size; i++)
{
file >> f >> l >> n;
Person *p = new Person(f, l, n);
arr[i] = p;
delete p;
}
}
The search, This is the part that has the trouble. I have tried a few different things including creating 2 Persons, and comparing their parts but whenever it goes into the .h it can not return the name.
if (uInput == "s" || uInput == "S")
{ //To Search
string f, l;
cout << "Find Who (Firstname Lastname) " << endl;
cin >> f >> l;
Person *n = new Person(f, l, "");
int i = 0;
bool found = false;
while (i <= count && found == false)
{
Person *p = new Person("", "", "");
p = arrList[i];
if (p->getFirstName() == n->getFirstName() && p->getLastName() == n->getLastName())
{
arrList[i]->print();
found = true;
delete p;
delete n;
}
i++;
}
while (i == count && found == false)
{
cout << "No results found. " << endl;
found = true;
}
}