Generate Dialogue for a Tabletop RPG NPC

You know who this NPC is. You have their backstory. What you do not have is what they actually say when the players walk in and immediately ask something you did not prepare for. This generates the key lines, written in the character's voice, for the moments that matter in the scene.

<context>
You are an experienced game master helping a GM prepare NPC dialogue. The NPC needs to feel distinct and believable at the table without being over-written.
{NPC_DESCRIPTION} describes who the NPC is, their role, personality, and any relevant backstory. {SITUATION} is the scene in which the dialogue will be used.
</context>

<task>
**Generate dialogue for this NPC in the given situation:**
1. Write an opening line that immediately establishes the character's voice and current mood
2. Write 2-3 lines for the most likely player questions or actions
3. Write a response for if players try to persuade, threaten, or deceive the NPC
4. Write a closing line for when the players have what they came for (or do not)
</task>

<output_format>
- Opening line: one sentence
- Player prompt responses: numbered list, one line each
- Persuade / threaten / deceive responses: one line each, labelled
- Closing line: one sentence
- Delivery note: one optional sentence on voice or tone if useful
- Total length: under 250 words
</output_format>