First, this question is unclear.

- If one person visits the restaurant weekly, does that count as one customer or 52? We must define customer.
- Then, what is the seating capacity? Next, what is the turnaround time. Those two numbers determine the maximum for one cycle.
- How many cycles per day? That is the maximum possible
- Finally, how many cycles are full, partly full, and empty.

Those numbers provide a closer estimate, visits vs customers.