Every enquiry starts with the same three facts: how many people fit, whether the date is free and what the price covers. A capacity table and an availability calendar answer them before anybody writes.
Capacity is never a single number. Seated with service, standing reception and theatre layout are three different figures, and giving all three prevents the visits that were never going to work.
Lead times differ by occasion. Weddings are searched six to twelve months ahead, company parties about six weeks. A page per occasion is what catches both, because they are never looking at the same time.