Your AI voice agent is only as smart as the knowledge base you give it. A well-built knowledge base means your AI answers customer questions accurately and confidently. A poorly built one means frustrated callers and missed opportunities.
Here's a practical guide to building a knowledge base that works — with real examples you can adapt.
Every knowledge base entry is a question-and-answer pair. The AI uses these to understand what customers might ask and how to respond. You don't need to anticipate every possible phrasing — the AI's language model handles paraphrases automatically. You just need to cover the key topics.
These are the most frequently asked questions for almost every business:
- Q: What are your opening hours? / A: We're open Monday to Friday 9am–7pm, Saturday 10am–6pm, and closed on Sundays and public holidays. - Q: Where are you located? / A: We're at [full address]. The easiest way is to take the MRT to [station], exit [X], and we're a 3-minute walk on the left. - Q: How can I contact you? / A: You can call us at [number], WhatsApp us at [number], or email [address]. - Q: Do you have parking? / A: Yes, there's parking available at [carpark name], about 2 minutes walk from us. The first hour is free.
Customers need to know what you offer before they can decide to book:
- Q: What services do you offer? / A: We offer [list your main services]. Our most popular is [service] which takes about [duration] and costs from $[X]. - Q: How much does [specific service] cost? / A: [Service] is priced at $[X] for [description]. We also have a package deal... - Q: How long does [service] take? / A: [Service] typically takes [X] minutes/hours. - Q: Do you have any promotions? / A: Yes! Our current promotion is [details]. It's valid until [date].
- Q: How do I book an appointment? / A: You can book right now by telling me your preferred date and time. I'll take your name and number and our team will confirm within [X] hours. - Q: Can I walk in without an appointment? / A: Walk-ins are welcome, but we recommend booking ahead to avoid waiting. [Explain busiest times if relevant.] - Q: What's your cancellation policy? / A: We ask for at least 24 hours notice for cancellations. Late cancellations or no-shows may incur a [fee/deposit forfeiture]. - Q: How do I reschedule? / A: Just call us at least 24 hours in advance and we'll find you a new slot. I can also take your details now and have someone call you back.
- Q: How long have you been in business? / A: We've been serving customers in [area] since [year]. - Q: Are you certified/accredited? / A: Yes, [relevant credentials or registrations]. - Q: Do you have reviews? / A: We have [X] five-star reviews on Google. You can search "[Business Name]" to find them.
- Q: What payment methods do you accept? / A: We accept cash, NETS, PayNow, and all major credit cards. - Q: Do you offer gift vouchers? / A: Yes, we sell gift vouchers in denominations of $[X]. You can purchase them in-store or WhatsApp us. - Q: What is your refund policy? / A: [Your refund policy in plain language.]
Keep answers conversational — write how you'd speak, not how you'd write a document. Keep them concise but complete. If an answer requires nuance ("it depends"), include the most common scenarios.
Review your call logs after a week to see what questions the AI couldn't answer confidently, then add those to the knowledge base.
A good knowledge base is never truly finished — it grows with your business.
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