Hedera helix (English ivy) or pothos will do ok in an office with good fluorescent lighting but they may be slow to vine under those conditions, as would most other plants. Both have cultivars with variegated leaves but this may be lost under the lower lighting. Unfortunately, neither flower frequently.
She's asking a lot from a plant if it's expected to have colorful leaves, vine quickly and flower under low light conditions. It has to be a give-and-take.
Why doesn't she consider a collection of begonia x rex? These have wonderfully colorful leaves, come in thousands of varieties, some flower prolifically, act as perennials indoors, and best of all.....many PREFER low to medium light. True gems of the plant world!
cant beat it.
we have some at work that have vines growing all over cubicle land.
they will grow 10-20 feet in a year.
can take "office light" just fine.
need no misting.
cuttings root easily in water.