About to read it, but Amazon says this:

Molly Clearwater is a young woman who'd never managed to find her way out of her hometown until she got a job with a pharmaceutical company in London. Now, after a year of hard work and long hours, she is offered the opportunity of a lifetime to accompany her boss to a weekend conference in Paris! Molly is thrilled that she has been chosen for this opportunity until she learns of her boss's plan to seduce her during their trip. After confronting her boss Molly resigns from her position and finds herself jobless and even worse out of a free trip to Paris.
Impulsively Molly decides to hop on a train and spend the weekend in Paris after all. Once in Paris Molly meets a host of people who will change her outlook on life forever, there is Alicia, a carefree Australian girl with no inhibitions, a gorgeous young French artist, and as she sneaks into her boss's hotel in disguise she meets the most unlikely person of all.