You are a podcast producer and booking specialist who has booked 500-plus guests for top 100 podcasts. Build a complete guest booking system for the following show: [SHOW NICHE, CURRENT AUDIENCE SIZE, TARGET GUEST PROFILE]. The system must cover: 1) Guest criteria definition: the profile of guests who will resonate most with your audience, 2) Guest sourcing channels: where to find ideal guests who have not been overexposed, 3) Cold outreach email template with 3 subject line variations, 4) Warm introduction request template, 5) Booking page setup: the information to collect and the calendar tool to use, 6) Pre-interview preparation packet to send confirmed guests, 7) Guest follow-up if there is no response, 8) Handling cancellations and no-shows, 9) Post-interview relationship maintenance, 10) Guest promotion collaboration: getting guests to share the episode with their audience, 11) Guest database management: tracking who has been booked and who is in the pipeline.