Walk one screen left of the Front Desk. Open the hallway door to enter the Health Spa. Rose is in the High Colonic Treatment room through the door on the left.
What does Rose want?
Hint:
Look around the High Colonic Treatment room. You'll see lots of flowers. Rose loves flowers. You need to get some more flowers for Rose. The only flowers you can take are in your room. If you don't have your room key, talk to the Front Desk girl to get it. Get the flowers from the vase in your room and give them to Rose. She'll give you an orchid for all your troubles.