Searching a text file

[sohom154]

I have a text file

Sohom~Bhattacharjee~7278453003~03326655594~[e-mail]~|
Sayani~Roy~9833344187~03322341524~[e-mail]~|
Sinchan~Bhattacharjee~9088770954~03345555594~[e-mail]~|

i have written this code.It works fine for the first contact but if we want to search the second or the third contact it is not able to find them...

  void Phonebook::search_name()
{
	int token;
	string field,line;
	char line1[50],line2[50];
	cout<<"Enter the first name of the person you wanna search ?? \n";
	cin.ignore();
	getline(cin,field);
	cout<<"person to be searched is "<<field;
    cin.get();
    token=0;
	ifstream readfil;
	readfil.open("data.txt");
	if(!readfil)
        {
            cout<<"file does not exist";
        }
    while(readfil.good())
    {

            readfil.getline(line1,12,'~');
            if(line1==field)
            {
                token=1;
                readfil.seekg(0,ios::beg);
                readfil.getline(line2,50,'|');
                cout<<"the person to be found is "<<line2;
                break;
            }
        if(token==0)
          cout<<"\n\n.....data not found...";
    }

}