Extract all except those found in the response of the request .

Hello,
here is response of the request .
["2016-11-15","2016-11-17","2016-11-18","2016-11-19","2016-11-20","2016-11-21","2016-11-26","2016-11-27","2016-12-03","2016-12-04","2016-12-10","2016-12-11","2016-12-17","2016-12-18","2016-12-24","2016-12-25","2016-12-31","2017-01-01","2017-01-07","2017-01-08","2017-01-10"]);

I want to extract all the dates except those found in the response of the request ?

kind regards