Both the name and host are optional and finger searches accordingly. It could be an exact match,case-insensitive, for a user's first name, as listed in the system's accounts file. It could be an exact match, case insensitive for a user's last name, as listed in the accounts file. Telnet to clubmidd and try the finger command. Finger fails when the server is not running on the target computer.
Some organizations provide information through finger.
However sometimes hosts are disabled due to security risks. For other internet users who want to be listed. The server at ds.internic.net searches all three directories when specified with the -h option. Whois can be accessed by telnetting to internic.net. The login name is whois.