Anyone faced this problem about queues?

Hi all,
I have a problem about queues.Let’s say there are two
companies, one A and the other B.When company A wants
to enter a new ticket,they should only see their own
queues not the others.And similar when company B wants
to enter a new ticket they should only see their own
queues, neither company A’s queues nor any other.How
can i do this? Any idea?

Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!
http://sbc.yahoo.com