Why? I must have used it sometime :P -Good evening, did you brought what i asked of you? (Καλησπέρα, έφερες αυτό που σου ζήτησα;) -Good evening, no, i forgot! (Καλησπέρα, όχι, το ξέχασα.) In greece (and i think in other countries too) one always answers to good evening/morning etc. Not doing so sounds a bit rude.