but it's me and is the value of 30 Rosenberg city diner is available

It seems like your message might have been cut off or lacks some context. If you’re asking about the availability of a diner or a specific value or offer related to "30 Rosenberg city diner," could you please provide more details? Are you preparing for an exam related to this topic, or is this a question about reservations or menu items? Let me know how I can assist you!