my %PhoneNum = (
     Carl => '111-1112',
     Dale => '333-3334',
     Ester => '555-5567',
     Frank => '777-6789',
     George => 999-0121
     );

  print "Please enter the name of the person whose phone number you would like to look up: ";
  chomp(my $name = <STDIN>);
  while ($name ne 'q') {        
    if (exists $PhoneNum{$name}) {
       print "$name has the phone number: $PhoneNum{$name}\n";
    } else {
        print "$name is not in the phone book\n";
    }
    print "enter name or 'q' for quit: ";
    chomp(my $name = <STDIN>);
    print "\n\n\n My name is $name\n";
   }