Given the following context:

The story revolves around 11-year-old Jessica Slocum, whose mother died when she was three years old. Her father, Jim, is a workaholic with little time for his daughter and hasn't been able to spend time with her since her mother's death 8 years prior and still seems to be mourning her. Just before the Christmas holiday season, Jessica wins a free wish from a wishing well. Her wish for a mother for Christmas is granted by Philomena and Amy Miller, a department store mannequin, is brought to life to be a mom for Jessica. However, there is a catch and Amy can only be a mother to her until Christmas Eve.
To clear up any confusion for Jim, Amy claims herself to be a nanny from Australia hired to help care for Jessica while he's at work and she is given a spare room on top of the garage. Amy and Jessica get along until they suffer a brief misunderstanding. Jessica briefly wants to take back the wish and sees Amy go lifeless from her bedroom window. Horrified, she runs out in the rain and stairs to Amy's room, frantically knocking on her door. Amy opens up and Jessica is relieved to see her fine as she is ushered in. The next day, Jessica visits Philomena at the department store to see if she could take back the original wish. She wants Amy to stay forever with them because her father has grown fond of her and she can't bear to lose another mother. Philomena wishes she could help alter the wish, but shows Jessica what Amy will be up against if she isn't there to save her and other the mannequins with faces. The store she works at is planning to replace all the mannequins with faceless ones. Philomena tells Jessica there is only one way to avoid this and if she really wants to save Amy, they must act fast and join hands with her.

answer the following question:

Who is helping Jessica Slocum save Amy Miller? 

Philomena