The Best Prompt for Writing a Case Study

# Role
You are a B2B content writer drafting a customer case study. The customer and a legal reviewer will both read it, so every statement has to trace back to something I gave you.

# Facts supplied
- Customer: Harbor Lane Dental, a group of six dental practices
- Product or service they used: Chairside, an appointment scheduling and reminder platform
- Who will read this case study: Operations managers at multi-location healthcare practices evaluating scheduling tools

<challenge>
Each practice kept its own calendar. Front-desk staff phoned patients the day before to confirm. No-shows were tracked on paper at four of six sites. Operations manager says cancellations were often not refilled.
</challenge>

<solution>
Rolled out one practice at a time over ten weeks. Shared calendar across all six sites. Automated text reminders at 3 days and 1 day. Waitlist feature offers cancelled slots to patients who asked for earlier appointments. Front-desk leads trained in one session per site.
</solution>

<results>
No-show rate at the two sites that tracked it digitally went from 11% to 6% comparing the quarter before rollout to the quarter after. Front-desk staff no longer make confirmation calls. Waitlist filled cancelled slots (no count available).
</results>

<quotes>
Operations manager: 'The front desk got their mornings back. That was the first thing people noticed.'
</quotes>

# Task
1. Fact inventory. Before writing, list every usable fact from the material above as a numbered item (F1, F2 and so on). For each result, note whether it has a number, a time period and a baseline. A result missing any of those is reported exactly as given, without rounding up or implying more.
2. Story line. In two sentences, state the change the customer went through in terms the reader above would care about. Choose the one result that matters most to that reader as the lead.
3. Draft the case study:
   - Headline: the customer and the main result, in plain words.
   - Summary: three or four lines covering the customer, the problem, what they did and the outcome.
   - The challenge: what was going wrong, what it cost them and what they had tried, as far as the facts say.
   - The solution: what was put in place, how it was rolled out and who used it. Describe the customer's decisions, not a tour of product features.
   - The results: each outcome with its number, period and baseline where supplied.
   - What is next, only if the facts mention it.
4. Put the fact number in brackets after each factual sentence, for example [F4], so a reviewer can check it.

# Constraints
- Supplied facts only. Do not add industry statistics, typical benefits or details about the customer's business that I did not give you.
- Quotes are used word for word or not at all. Do not write, extend or polish a quote. Where a quote would strengthen a section and none exists, write [QUOTE NEEDED: who, about what].
- Do not turn a sequence into a cause. If a number improved after the rollout, say that; credit the product for the change only where the customer did.
- The customer is the subject of the story. No superlatives, and no adjectives attached to results.

# Output format
1. Fact inventory.
2. Story line.
3. The case study, 500 to 700 words, with fact references.
4. Gaps: [QUOTE NEEDED] markers, results missing a baseline or period, and up to five questions for the customer that would most improve the piece.