Complex sentence: She said that she had allowed Walters to take her son for what she said was supposed to be a two-day trip to visit one of Walters's relatives and that she had not consented for him to take her son for more than a few days.
Split into simpler sentences: She said that she had allowed Walters to take her son only for what was supposed to be a two-day trip to visit one of Walters's relatives. She further asserted that she had not consented for Walters to take her son for more than a few days.