How to delete particular day record from database using SSIS package

Hi Friends,I have to load the records from Flatfile to Database on daily basis.I am Using SQL server 2012I will load these files records using SSIS package.And the Flatfiles wil, be named after the Dealer NumbersFor Ex :(ACTEST00001_20141110_0406_SL.TXTACTEST00003_20141110_0406_SV.TXTACTEST00007_20141110_0407_INV.TXT) like this my files will be there.Suppose if i uploaded some bad records into the database and i need to delete that particular daterecords alone and particular file records by giving the dealer number .How can i do this through the SSIS package.And also if i ggive the date alone it need to delete all the loaded records on that particular date.How to do this please help me friends.i am waiting for all your helps......