Prompt Title: Staff roaster

Sure, here's an example of a formal message you could use to convey the staff roster for the week:

Subject: Staff Roster for Week of [Date]

Dear Staff,

I am writing to provide you with the staff roster for the week of [Date]. Please take note of your assigned shifts and make any necessary arrangements.

Monday: [Shift 1: Employee A, Employee B] [Shift 2: Employee C, Employee D]

Tuesday: [Shift 1: Employee B, Employee C] [Shift 2: Employee D, Employee E]

Wednesday: [Shift 1: Employee A, Employee D] [Shift 2: Employee B, Employee E]

Thursday: [Shift 1: Employee C, Employee D] [Shift 2: Employee A, Employee E]

Friday: [Shift 1: Employee B, Employee D] [Shift 2: Employee A, Employee C]

Saturday: [Shift 1: Employee A, Employee E] [Shift 2: Employee B, Employee D]

Sunday: [Shift 1: Employee C, Employee E] [Shift 2: Employee A, Employee B]

Please ensure that you arrive promptly for your assigned shift and are prepared to provide excellent service to our customers. If you have any questions or concerns about your schedule, please do not hesitate to contact me.

Thank you for your hard work and dedication to our restaurant.

Best regards,

[Your Name] Restaurant Manager

This message provides clear and concise information about the staff roster for the week, and also emphasizes the importance of punctuality and providing excellent customer service.