DD#2 is going to a wedding (her BFbob's stepbrother) in 2 weeks. She's not sure of the time of the ceremony

but says that it's an evening reception.
BFbob will be wearing a suit and tie.
We really don't shop well together . . . I don't like shopping, I usually tend to get a bit cranky

. . . so I thought that you all could help her pick out age/event appropriate dresses that aren't mom-biased.
She has one possible dress that is white with black polka-dots, trimmed with black around the bodice and hem. It is satiny material, strapless with a low laced-up back. So she will need a shrug or bolero type jacket if she wears this dress. Any thoughts here would also be very helpful.
Her dress shoes are black (I'd rather not buy a new pair of shoes) and she has a really nice dressy pair of brown boots.
She is tall, slender and 18-1/2 years old.
Anybody feel like shopping?
