Date format issue coming from RFC

Hi ,

I am working on SAP Screen Personas , using persona editor we created additional fields on the standard screen of VA03 transaction on fiori launchpad. There is one parameter of date in that RFC and its in format of mm/dd/yyyy. And this is the required format . But when we call that RFC in our personas script its be default taking the yyyy/mm/dd.

How to change the format of the date as required . PFA the screenshots of the code written in script and date format in RFC .