Help with a numbers formula to call up employee schedules for a particular day / hour of day

Question

So my goal is to be able to use a drop-down menu on Sheet-1 with "day of week" and a 2nd one with "hour of day" to pull up a list of employees working on a particular day at a particular time.
So far I've got Sheet-1 where the magic will happen
Sheet 2-8 are different days of the week each displaying an employees hourly schedule and what hours of the day it corresponds with
Here's a visual example of my thoughts:
http://imgur.com/a/45ZZr#1
If anyone can help point me in the right direction that woul be helpful!

Answer 1

Here is another approach that takes advantage of the Numbers 3 native filtering interface.
Have a simple data input table like this (no formulas) and set up a filter as shown:
When the filter box is checked the list shrinks to show employees working on Monday at 10a:
Typing new values into the filter rule boxes changes the results instantly.
And if you have the data input table arranged as shown, you can not only filter it but you can easily view it in multiple ways.
Here's Monday:
The one formula in the table, in B2 copied right and down, is:
   =IF(COUNTIFS(Hours Input::$A,$A2,Hours Input::$B,$A$1,Hours Input::$C,B$1)>0,"x","")
And here's A's schedule:
The formula in B2, copied right and down, is:
  =IF(COUNTIFS(Hours Input::$A,$A$1,Hours Input::$B,$A2,Hours Input::$C,B$1)>0,"x","")
etc.
SG