Advice/ suggestions

Brenda
My fiance and I finally set a date, well im having 4 brides maides and one of his twin sisters(who are 20) is my maid of honor, and the other one isn't in my wedding because she's irresponsible and unreliable and acts just like my 9 year old sisters. I feel bad about it. So what kind of job or something can I give her to make her feel better.