You say "I wish that this dress becomes a guy's suit, so I can still fit in it and be a guy."
"Sorry," says the man. "You wished to use the dress. You can't use the dress unless it's a dress. If you changed it into a suit, it wouldn't be a dress, you know."
"Fine! I wish that this dress would be like the dress your wife is wearing, but I'm still using it! Is that okay?"
"Sure it's okay," says the man. Suddenly the dress is loose on you, but instead of it falling to the ground you feel your body expand to fit it. So you're a woman now--at least it's better than being a girl--and you still have one wish left. What should you do?