SaaS Room Reservation Software with Floor Plan Interface

I'm seeking a SaaS room reservation solution with a visual floor plan for booking. Users should be able to view available rooms, select, and reserve them, receiving confirmation notifications.

Admin functionalities should include:
- Approving booking requests
- Generating reports
- Tracking booking history
- Setting rules (e.g., minimum booking hours, advance booking days)
- Adding/removing rooms
- Canceling reservations

Key Requirements:
- Free or generous free tier
- Fully SaaS (no self-hosting)
- Google Calendar integration
- Approval workflow based on predefined rules
- User/admin notifications (booking confirmations, reminders, cancellation notices)
- Booking history and reporting

Ideal Skills and Experience:
- Experience in developing SaaS applications
- Strong UI/UX design skills, particularly for floor plans
- Familiarity with calendar integrations, especially Google Calendar
- Knowledge of approval workflows and notification systems
- Reporting and data tracking capabilities