There are several synonyms for the phrase "accommodated with seats." One option is "provided with seating," which conveys the same meaning in a slightly more formal tone. Another alternative is "furnished with chairs," which emphasizes the type of seating that is available. "Seated comfortably" is another phrase that conveys the same idea, but is more concise. "Given a place to sit" is a simpler way to express the same notion. One could also say "granted seating," which implies that someone has been given permission or approval to sit. Regardless of the phrasing, all of these synonyms emphasize the provision of seating.