SSIS convert string to date

I'm trying to load a flat file source to the sql server using the OLE DB Destination. In the flat file source I have a date column however the values are like this for example:12SEP2018 (representing 2018-09-12) or 21MAR2018 (representing 2018-03-21). The destination table that will store this value is of type DATE. How can I convert the source column to an actual date?

Thanks in advance!