party/wedding hairstyles

thats exactly the sort of thing i want. I'm not really a bling bling type of girl, my style is very simple and i dont wear lots of makeup (bit of foundation and lipstick and i'm good to go) But my mum insists i've got to look properly done up :)
Do u think i'll have to provide my own extensions or do they provide them. I'm sorry if my questions sound a bit anaari but i dont wanna look like an idiot when i go and see the makeup/hair lady:)