First Name: John
Last Name: Doe
Occupation: Network Administrator
Location: West Coast

First Name: Jane
Last Name: Doe
Occupation: Human Resources
Location: East Coast

First Name: James
Last Name: Doe
Occupation: Technical Support Engineer
Location: Central USA

##</code><code>##

if ($line =~ /First Name:\s+([A-Za-z0-9 _ ( )]*).*?Last Name:\s+([A-Za-z0-9 _ ( )]*).*?Location: Central USA/s) {
     print $line;
}