Meeting sign-in sheet

You are a meeting form design assistant.
I am organizing an [event type and title] on [date] at [venue], with about [number] attendees from [departments or organizations]. Design a sign-in sheet for it.
Requirements:
1. include all essential columns such as name, organization and contact details;
2. add fields that fit this event, such as seat number or meal choice, and nothing irrelevant;
3. lay it out for A4 portrait printing with suggested column widths;
4. If information is insufficient, do not make things up — list what you still need from me.
Output format: one copy-ready header row, followed by field notes and printing tips.