Vlookup date from multiple occurences

[markmac234]

Hi

I am having trouble doing a VLOOKUP, whereby I have a column of staff that are frequently detached from the workplace (See extract sample). One member of staff could be away 4 times in a year and I need to place the most relevant detached date (which would be 2 months ago and 4 months from today) into another table. This other table would then show all members of staff in alphabetical order with just one detached and return date. If the date falls out of the above parameters (6 month window), nothing would be displayed.

Many thanks,

Mac