Academy › Build › Bookings and orders
Two services can want the same chair, but only one gets it
You'll come away with a fixed rule for deciding who keeps a shared resource when two bookings request it at once, and with the message already written for whoever ends up without a slot.
By Yodai · Published September 7, 2026 · Updated October 12, 2026
The spa only has one pedicure chair. Marta booked it for today at 5:00 p.m. three days ago, through the website, and already paid the deposit. Noelia called twenty minutes ago asking for a foot reflexology session at that same time, because she suddenly had a free afternoon. Both of them want the same chair at the same time, and it's up to you to decide.
When two services want the same chair in the same slot, someone has to go without it. What you need to have decided ahead of time is which one, and what you say to the one who doesn't get the chair.
Set the rule ahead of time, not at the counter
If you leave that decision for the moment, whoever's behind the counter when the phone rings makes the call. And that person decides based on what's in front of them: the customer who sounds angriest, the one who's been coming for years, the one who seems ready to make a scene if you tell her there's no spot. None of those are rules. They're reactions, and they change depending on the day and who happens to answer.
A fixed rule does two things an on-the-spot decision doesn't. It can be explained in one sentence, without having to justify case by case why this customer gets a yes and that one gets a no. And it applies the same way on a Tuesday when your employee answers as it does on a Saturday when you do.
Who wins: first come, first served, with one exception
- Whoever booked first wins, no matter what service they asked for
- It's the same rule for whoever answers the phone, and it doesn't depend on your judgment call that day
- Whichever service you decide is worth more wins
- You have to maintain that priority list and update it if prices change
- Every case allows for an exception, and exceptions are what generate complaints
- The customer has no way of knowing why she lost out, because the criteria only exist in your head
Which one I pick: By default, first come, first served: whoever booked first keeps the chair, no matter what they're asking for. The only exception I stick to is money already on the table, a deposit or a session from a package that's already been paid for, which does jump ahead of an unpaid booking, no matter the service. Giving priority to a service because I like it better or because it pays more that day, I never do that.
The payment exception isn't about preferring one service over another. It's about preferring whoever has already committed money, with a deposit or a paid package session, over someone who can still change their mind without losing anything. Marta, who paid a deposit three days ago, isn't in the same boat as Noelia, who just named a time over the phone.
If instead you give the chair to Noelia because you figure reflexology brings in more money that day, you're deciding based on something Marta can't see or understand. And the next time she books with a deposit three days ahead, she'll rightly wonder what the point was.
What to tell the one who loses out
- 1Look at who got there first
A booking with a deposit or a paid package, or, if neither one paid, whichever booking came in earliest. - 2Confirm that person without changing a thing
Don't move her time or ask her to adjust: she won the slot. - 3Let the other one know before she leaves home
Send a message fifteen minutes after the booking comes in, not when she walks through the door. - 4Offer the next open slot on the same chair
No “we'll let you know”: give a specific time, ideally that same day. - 5If there's no slot open, put her on a waitlist with a deadline
Tell her when you'll know if one frees up, don't leave her waiting with no date.
- A fixed, written rule: whoever booked first wins.
- The only thing that counts as being ahead is money already put down: a paid deposit or a session from a paid package.
- The message for whoever loses out is already written: next slot or a waitlist with a deadline.
- Nobody decides at the counter based on who pushes hardest.
Test yourself
Answer before opening each one. If one gives you trouble, go back to the section that explains it.
1. Two bookings for the same pottery kiln: one came in through the website at nine in the morning without paying anything, another came in by phone at eleven with the deposit already paid through Venmo. Who gets the kiln?
The eleven o'clock booking, because they paid the deposit. First come, first served only breaks ties between two equally committed bookings; as soon as one has put money down, that one jumps ahead even if it was booked later.
2. A customer books the recording studio for Tuesday at four o'clock, with no deposit. Half an hour later, another customer books the same slot for a service that's more profitable for you, also with no deposit. Who do you tell there's no room?
The second one. Neither paid anything, so first come, first served rules, not how profitable each service looks to you. Switching the rule based on margin is exactly the service priority approach we don't stand behind.
3. The customer who loses the chair asks if she can just come at that time anyway and wait for it to free up, without you offering her the next slot or a waitlist. Is that an acceptable answer to give her?
Not as the option you offer: you give her a specific slot or a waitlist with a deadline. If she decides to take her chances, that's her call, but your message can't be “just show up and we'll see,” because that's exactly what breaks trust in booking ahead.