Insert two (2) tab stops: the first one in 0.5" with left alignment and the second one in 5.5" with right alignment.
Then, write the text:
Despoina Lampropoulou at the first tab stop and the text: Head of Secretary Division at the second tab stop.
Also, insert the following texts on the second line of the document:
Kostas Goutoudis at the first tab and Head of the Development Department at the second tab.