What you wear to a job interview can be very important, so be careful when choosing clothes.
Suits are always the easiest option, and you can wear either a skirt or trousers (but be careful when choosing the skirt – you don’t want it to be above the knee).
If you do choose a dress, a black or other dark-coloured dress is probably the best option. Make sure that it’s not revealing, and again, not above the knee.
You could also wear a jacket over it if you want to look a bit smarter.