The Original SQL Statement is:
SELECT SA.[RequestStartDate] as \'Service Start Date\', SA.[RequestEndDate] as \'Service End Date\', FROM (......)SA WHER
You will want to use a CONVERT() statement.
Try the following;
SELECT CONVERT(VARCHAR(10), SA.[RequestStartDate], 103) as 'Service Start Date', CONVERT(VARCHAR(10), SA.[RequestEndDate], 103) as 'Service End Date', FROM (......) SA WHERE.....
See MSDN Cast and Convert for more information.