You could try it like this:

#!/usr/bin/perl
use warnings;
use strict;

my $employee_file = 'employee_list.csv';

open OUTFILE, '>', 'test.script' or die "Cannot open 'test.script' $!"
+;

my $employee_name;
if ( @ARGV == 1 ) {
    $employee_name = $ARGV[ 0 ];
    }
else {
    print "\n\nPlease enter the employee's name: ";
    chomp( $employee_name = <STDIN> );
    while ( 1 ) {
        print "\n\nYou entered $employee_name - is this correct? <y or
+ n>:";
        my $ans = lc substr <STDIN>, 0, 1;
        if ( $ans eq 'n' ) {
            print "\n\nPlease enter the server name: ";
            chomp( $employee_name = <STDIN> );
            next;
            }
        elsif ( $ans eq 'y' ) {
            last;
            }
        }
    }

my @name_breakdown = split ' ', $employee_name;

open my $EFH, '<', $employee_file or die "Cannot open '$employee_file'
+ $!";
while ( <$EFH> ) {
    my $field = ( split /:/ )[ 1 ];
    push @exact_check,  $field if length $field and /\Q$employee_name/
+;
    push @approx_check, $field if length $field and /\Q$name_breakdown
+[1]/ and /\Q$name_breakdown[0]/;
    }
close $EFH;

print "EXACT MATCHES:\n", '=' x 50, "\n";
my $key = 'a';
my %lookup;
for my $check ( @exact_check ) {
    $lookup{ $key } = $check;
    print $key++, ". $check\n";
    }
print "\n\nAPPROXIMATE MATCHES:\n", '=' x 50, "\n";
for my $check ( @approx_check ) {
    $lookup{ $key } = $check;
    print $key++, ". $check\n";
    }

print "Please select which is correct: ";
my $ans = lc substr <STDIN>, 0, 1;

if ( exists $lookup{ $ans } ) {
    my @breakdown = split /,/, $lookup{ $ans };
    splice @breakdown, 1, 0, $ans eq 'a' ? 'TESTING' : 'THINGS';
    print OUTFILE join ',', @breakdown;
    }

__END__
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