Index Match not matching

Hello everyone,

I am trying to create a simple index match but for some reason all i get it a #N/A result? I'm sure it's something simple that I have overlooked but cannot seem to work it out

I just need to index column A (A2:A12) and then find a match between the two dates that are along that row. Once a match is found then the data should return in my case ST.


Below is a screen shot of my data:
Screen Shot 2018-02-21 at 12.18.27.jpg

And here is my code (array formula):

=INDEX(A2:A12,MATCH(1,IF(G3>=B2:C12,IF(G3<=D2:E12,1)),0))

I have also attached the spreadsheet.
The cells are merged but this is practical for my spreadsheet. I don't think that this will effect the problem though.

Thank you in advance for any help.