What does "help" mean?

this sounds so stupid and perhaps i am just overthinking but i went to sephora today and asked the associate if they had this brand in store and all she said was "no, sorry." when i was checking out i was asked if anybody helped me and i said no cos my understanding of help is like helping me pick a shade or something just more involved than saying "no" 😭 anyway i just got home and now i feel bad cos i probably should've said her?

the shame is eating me up that i don't want to go back to that branch anymore even if it's the closest to me lol

edit: i am neurodivergent 💀