幹事 かんじ
kanji

Noun
Suru Verb

1. executive secretary; coordinator; organizer; person in charge of making arrangements

わたくし、幹事 かんじをやるのが はじめてだから要領 ようりょう わるいかもしれません。
watashika njio yaru noga hajimete dakara yōryōga waruikamo shiremasen
This is the first time I've worked as a coordinator, so I may not have the hang of it yet.