Writing a good AI prompt is a skill that improves with practice. The system prompt is the primary way you communicate your intentions to the AI — it defines the assistant's identity, knowledge, behavior, and constraints. This guide covers the core principles of effective prompt writing so you can get the most out of your Live Bots 365 assistants.
The Core Principle: Be Specific
The most common mistake in prompt writing is being too vague. The AI will fill in any gaps with its own assumptions, which may not match your intentions. Every important behavior should be explicitly stated. If you want the assistant to always confirm the caller's name before proceeding, say so. If you want it to never discuss pricing, say so.
Think of writing a prompt like writing instructions for a new employee on their first day. You would not just say "be helpful" — you would explain exactly what being helpful means in your context.
Structure Your Prompt with Sections
Well-structured prompts are easier to maintain and produce more consistent results. Use clear section headers to organize different aspects of the assistant's behavior:
| Section | What to Include |
|---|---|
| # Role | The assistant's name, company, and job description |
| # Objective | The primary goal of the conversation |
| # Tone | Communication style: formal/casual, empathetic/direct, brief/thorough |
| # Knowledge | Key facts the assistant needs: hours, services, pricing, policies |
| # Process | Step-by-step instructions for the main workflow (e.g., booking flow) |
| # Objection Handling | How to respond to common pushbacks or difficult questions |
| # Rules | Hard constraints: what the assistant must never do |
| # Closing | How to end the conversation professionally |
Use Examples in Your Prompt
One of the most powerful techniques is providing example exchanges directly in the prompt. This shows the AI exactly how you want it to respond in specific situations, rather than just describing it abstractly.
Example: Handling a pricing question
Caller: "How much does a cleaning cost?"
Assistant: "Our routine cleaning is typically covered by most dental insurance plans at no cost to you. If you don't have insurance, the out-of-pocket cost is $120. Would you like to go ahead and schedule?"
Keep It Focused
Avoid the temptation to include every possible scenario in the prompt. Overly long prompts can cause the AI to lose track of important instructions. Focus on the most common scenarios and the most critical rules. For edge cases that come up rarely, the AI's general intelligence will usually handle them adequately.
A good target length for most assistants is 300–600 words. If your prompt is significantly longer, consider whether some content could be moved to a knowledge base instead.
Test and Iterate
No prompt is perfect on the first try. Use the Testing Your Assistant feature to run test calls and review transcripts. When you find a scenario where the assistant behaves unexpectedly, update the prompt to address it explicitly. Treat prompt writing as an ongoing process of refinement.