Simple unterminated constant. The problem i think is with the if statement.

int main ()
{
string name;

string address;

string phonenumber;

string name;
cout<< "What is your name? ";
cin>> name;
If name="What is your name?";

name="Amy Tay";

address="3102 Peterboro Drive";

phonennumber="330-678-7557";

cout<<"\t"<<name<<\n";

cout<<"\t"<<address<<\n";

cout<<"\t"<<phonennumber<<\n";
}

#include <iostream.h>
using namespace std;
int main()
int age, float Weight;
age=26;
weight=180;
cout<<"My age is"<<age<<"and my weight is"<<weight<<"pounds."