pressing e key and actvating both cutscenes but only want one at a time

so i have 2 cutscenes that i want to play on 2 diffrent npcs. but if i press e on the first npc both cutscenes start playing at the same time. how do i make it so that i can play the first one and after that one is finished and you press E on the other npc that the 2nd will play?