Am I able to fix my flanks or "hip dip"? (photo)

Hello dear!
Thanks for the question and provided information as well.
Based on your pictures, you are a great candidate for liposuction with BBL, and I think you'll get very good results. 
Liposuction allows your plastic surgeon to transform your entire shape. You can improve your abdomen, back and flanks, and of course your buttock, to give you a nice heart shape.
In general, you need to be physically healthy and at a stable weight, have realistic expectations, be a non-smoker and your BMI needs to be 30 or less.
The average cost varies a lot depending on the clinic, the country, city and the plastic surgeon. It also depends on the number of areas treated with liposuction. l recommend you to make an appointment with a board certified plastic surgeon to talk about your goals and anything you need to know.
Good luck :)

Thank you for your questionTypically the BBL is for the butt, not the hip. I would recommend fat grafting to the hip. That will fix the hip dip. Often times we combine the BBL with fat grafting to the hip to give people that curve they desire. As far as pricing we suggest our patients to give the office a call in order to set-up a consultation.