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Make a start
One step at a time.
3 steps
Start with the synthetic worked example or other non-sensitive inputs. Run one prompt at a time in your chosen AI tool. Replace any bracketed placeholders with the requested material, check each reply, and supply the source or earlier outputs that step needs. Paste them again if the tool lacks that context.
Start with the synthetic example, then adapt each prompt to your task.
01
Open a chat and use the complete sample
Open https://chatgpt.com. If you have access, choose New chat. Copy all the instructions below (the prompt), including the SAMPLE INPUT, into the message box and send it. You do not need to upload a file. You should see two accepted format examples, six rejected examples, one hint and a clear warning about existence. The wording can differ from the worked example, but the facts and constraints must agree. If you cannot access this service, use another text assistant available to you; account requirements and limits may differ.
Your starting prompt
Write an example set explaining the booking-reference field. Include two valid formats and six invalid ones, each with a clear reason. Cover lowercase prefix, too short, too long, internal space, hyphen and a letter in the digit portion. Add a short hint and the format-only warning. Use only the supplied facts; mark missing information rather than inventing it. Return written text only. Do not send, publish or change anything in another service.
SAMPLE INPUT
Made-up example for practice. All people, organizations, records and product behavior below are fictional.
Made-up hotel enquiry form rule: booking reference is exactly six characters: uppercase P followed by five digits 0–9. No spaces, hyphens, other letters or lowercase p. Leading zeros in the five digits are allowed. This is format checking only; a correctly formatted code is not proof a booking exists. Need 2 valid examples, 6 invalid examples with distinct reasons, and one short field hint. Examples must be labeled fictional; do not create or query real bookings.
02
Compare, correct and save
Compare the answer with the complete sample input and the checks below. P12345 and P00007 each contain exactly six characters. If a fact is missing, changed or invented, paste the correction prompt below into the same chat. Read the revised result again; if it still fails, correct the text yourself before using it. Copy the reviewed result into a new note or text document. Keep real publication, decisions and sending for a separate human review.
Your starting prompt
Check your previous answer against the SAMPLE INPUT in my first message. Test each point below. For a failure, show the problem and then return a complete corrected answer; for a missing source fact, keep it explicitly unknown. Do not invent a successful check.
- P12345 and P00007 each contain exactly six characters.
- The six invalid examples fail for the six requested distinct reasons.
- The result never equates valid format with a real confirmed booking.
03
Optional: use your own facts
Open a new chat. Copy the prompt below and replace [PASTE YOUR INPUT HERE] with your own non-sensitive source text, facts and limits for this task. Include any desired headings, count or length. Send the whole message. Expect the same kind of written result, using your facts. Check every source fact and limit yourself; the example’s names and totals do not apply. If a detail differs, show the exact mismatch and ask for a complete correction. Save the checked draft before any separate decision to use or send it.
Your starting prompt
Make format-only examples for the booking-reference rule below. Use my requested numbers of valid and invalid examples, covering the listed error types. Explain each, give a short entry hint and state that format validity does not prove a booking exists. Do not invent a different field rule.
Use only my input. Ask for information needed to finish rather than guessing. Return written text only; do not send, publish, book, submit or change another service.
MY INPUT
[PASTE YOUR INPUT HERE]
Optional: improve the result
Draft a manual test sheet
Turn the examples into expected results a product reviewer can compare with the actual form. This extension uses the worked example. Return to that example chat, or paste its input and your checked example answer into a new chat first. Do not apply its sample values unchanged to your own input.
Advanced prompt
Make an eight-row manual test sheet using these exact examples, with expected accept/reject and an empty Observed result field. Do not fill observed results or claim the form was tested. Keep the same SAMPLE INPUT from my first message unless I explicitly replace it.
Show, then try
See the shape of the result.
This input is synthetic. The output is a written illustration of the intended result, not a verified AI-tool run.
01 / The starting point
Synthetic input
Made-up example for practice. All people, organizations, records and product behavior below are fictional.
Made-up hotel enquiry form rule: booking reference is exactly six characters: uppercase P followed by five digits 0–9. No spaces, hyphens, other letters or lowercase p. Leading zeros in the five digits are allowed. This is format checking only; a correctly formatted code is not proof a booking exists. Need 2 valid examples, 6 invalid examples with distinct reasons, and one short field hint. Examples must be labeled fictional; do not create or query real bookings.
Copies text only. For image or file tasks, use the source files named in the steps too.
Worked example written for this guide, not output recorded from a live AI session.
Fictional format examples
Valid: P12345 — uppercase P plus five digits.
Valid: P00007 — leading zeros are allowed.
Invalid: p12345 — the prefix is lowercase.
Invalid: P1234 — only four digits follow P.
Invalid: P123456 — six digits follow P.
Invalid: P12 45 — a space appears in the digit portion.
Invalid: P12-45 — a hyphen is not allowed.
Invalid: P12A45 — A is not a digit.
Field hint: Enter uppercase P followed by five digits, with no spaces or hyphens.
This checks the format only. An accepted format does not confirm that a booking exists.
These checks use the worked example and its particular facts. With your own material, check your actual names, numbers, sources and rules; do not reuse the sample’s values as the answer.
Unsaved checks stay in this tab and reset when you reload. If you choose Save guide, its current example checkmarks are kept in this browser when storage is available.
!
A few things to watch for.
Do not let an assistant silently strip spaces or change case unless the actual field is designed to do that.
A format example is not a usable booking identifier.