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Replying to every enquiry in 15 seconds, even at 9pm

Building a small automation that answers new leads in seconds and offers a real time slot, and why the hardest part was teaching it when not to book.

Result
Replies in 4–15 seconds, 24/7 (measured in testing)
Running cost
Roughly $10–30/month, plus a few cents per text
Works with
Website forms, Facebook lead ads, Google or Outlook calendar, SMS, A CRM or a spreadsheet

If it gets it wrong: Anything that sounds urgent or medical skips the booking and goes straight to a person. It never quotes a price that isn't on the list.

Try it: send it an enquiry

live

This runs the real workflow on my n8n server. Tidewater Physio is a made-up clinic, nothing gets booked, and your message isn't saved.

96/500

Try it on your own business → Upload your price list or FAQ and test it with your own details.

Why I built this

Someone fills in an enquiry form at 9pm. The owner sees it at 8am and replies at 10. By then the person has booked with whoever answered first.

I kept hearing versions of this from small service businesses. Nobody was slow on purpose. They were just busy doing the actual work.

What it does

Every new enquiry gets a short, friendly reply with a real time to book. In testing it replied in 4 to 15 seconds, every time, including after hours.

The owner doesn't answer faster. They just stop being the one who has to answer first.

How it works

  1. A lead comes in from a website form, a Facebook ad or a missed call.
  2. It picks a real slot from the calendar that fits what they asked for.
  3. AI writes the reply using only the business's real prices and services.
  4. Anything sensitive goes to a person. In the physio clinic demo, red-flag symptoms go straight to staff instead of being booked.
  5. The lead lands in the CRM in the right stage, and the owner gets a notification.

What it runs on

A website form, a Google or Outlook calendar, an SMS provider and a CRM (a spreadsheet works too). The demo is a physio clinic with test leads, but the same shape fits trades, salons, tutors or anyone who takes bookings.

What it costs to run
Automation server and AI Roughly $10–30 a month at small-business volume
Each text A few cents, charged by the SMS provider
Owner's time Close to zero: only the leads it hands over

What I learned

  • The hard part wasn't writing replies. It was knowing when not to book. The red-flag rule ended up being the most important line in the whole thing.
  • Missed calls don't need AI. A fixed, friendly "sorry we missed you" text works better than anything generated.
  • Never let it guess a price. It only quotes from the price list. If something isn't on it, a person follows up.
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Quick answers

What does "Replying to every enquiry in 15 seconds, even at 9pm" achieve?
Replies in 4–15 seconds, 24/7 (measured in testing)
How much does it cost to run?
Roughly $10–30/month, plus a few cents per text
What tools does it work with?
Website forms, Facebook lead ads, Google or Outlook calendar, SMS, A CRM or a spreadsheet
What happens if it gets something wrong?
Anything that sounds urgent or medical skips the booking and goes straight to a person. It never quotes a price that isn't on the list.
Behind the scenes: how I planned itPlanning board for Replying to every enquiry in 15 seconds, even at 9pm