A cinema service associate's job description includes greeting customers, assisting them with ticketing and seating, managing concessions and box office sales, and ensuring the cinema is clean and welcoming. This role requires strong customer service skills, the ability to handle cash efficiently, and the flexibility to work various shifts, including weekends and holidays. Key responsibilities also involve resolving customer issues, providing information on movie synopses and showtimes, and coordinating with other staff to ensure a smooth guest experience.