What are the interior considerations when designing a banquet hall?

Use this -------------> http://gallery.conceptdraw.com/floor-plans/cafe.php

I found this banquet hall interior plan, which uses conceptdraw, a retail software package with a trial.

An interesting search on Google Images returns a lot of interesting banquet hall designs. The issues you would be dealing with regarding the design of a banquet hall are the same as any other commercial building. Fire, Building Code and zoning. You would also need to pay close attention to power, internet, video display, and other supportive options which would be needed depending on the various banquet hall use cases.