A number of special characters may be typed in response to the prompts to 
provide control over the operation of the interface.

q      at the prompt for a person quits the interface
Ctrl-C at the prompt for a person quits the interface

q      at any other prompt quits the interface, if confirmation given.
Ctrl-C at any other prompt returns the user to the prompt for a person's name
Ctrl-C while a search is in progress abandons the search

?      ?topic gives help on a named topic - ?? for a list of topics
-      resets any default to no default
*      lists all the people, departments, organisations, countries as 
       appropriate
<CR>   accepts any existing default from a previous query
fred*  searches for entries with a name beginning with fred
       type "?wildcards" for more details