Looking to pull a data range from one sheet to another after selecting form a drop down li

Hi,

I am trying to return a selection of data after selecting a month from a drop down box.

The aim of the spreadsheet is to track the amount of time being spent on projects [Current Assignments], this then pulls data to display the availability remaining on a weekly basis [Availability] which is grouped by roles. I have been asked to display only a month at a time so I wanted to use a drop down list to select a month [Availability Summary] and when a month is selected the data range for that month is displayed.

Can anyone help with the final step? Attached is the current copy.

Thanks in advance
Mike