How can i condense these sentences??

Question

While Cinderella got them ready for the ball, the stepsisters asked if she wanted to attend the ball. Cinderella said that she did not belong at such a place and they agreed and said that she would be laughed at if she showed up at the prince's ball.

Answer 1

While Cinderella prepared her sisters for the ball, they asked if she would like to attend. She demurred, saying that she would not fit in. They agreed.