The Spare Chair: Planning for the Speaker Who Cannot Arrive

Every conference programme is an act of faith. It assumes that the people named on the running order will arrive, that the 09:40 train will run, that the throat will hold and that the room will be ready. Most of the time the faith is rewarded. Occasionally it is not. A speaker falls ill on the Thursday; a signal failure strands the keynote somewhere outside Doncaster; a family emergency removes a panellist an hour before the session. The audience does not see the emails, the phone calls or the quiet reshuffling in the green room. It sees an empty chair and a chairperson filling time.

The remedy is not complicated, but it does require a decision before the day rather than during it. Every conference of any size should name a standby speaker: someone who knows the programme, understands what they would be stepping into and has agreed in advance to be available. The purpose is not to suggest that speakers are unreliable. It is to accept that life is, and to plan accordingly.

Why a named reserve changes the room

A reserve is different from a willing volunteer in the audience. The volunteer is a hope; the reserve is a plan. When a session chair knows that a specific person is briefed and waiting, the tone of the contingency changes. There is less improvisation, fewer apologies and a shorter gap between the cancellation and the recovery. The audience may never learn that anything was amiss, which is precisely the point.

There is also a benefit for the speakers themselves. A presenter who knows that a colleague is standing by is less likely to struggle through a session when they should be at home. In practice, the existence of a reserve can make it easier for someone to say, early enough to matter, that they cannot come.

Choosing the right person

The reserve should not be treated as a lesser speaker. The most effective standby is someone with genuine standing in the subject, who can hold the session without the audience feeling that they have been given a diluted version of the programme. In many cases this will be a peer from the same sector, a member of the organising committee with relevant expertise, or a chair who is already attending and can step into a presenting role at short notice.

It is worth being explicit about status. A reserve who is invited only as a fallback may feel, rightly, that they are being asked to carry uncertainty without recognition. A reserve who is described as a named understudy, credited in the programme and paid for their availability is in a different position. The language matters as much as the fee.

Where possible, choose someone who is already familiar with the venue and the running order. A local speaker, or a presenter who was going to attend anyway, reduces the logistical load. A reserve who has to travel across the country at three hours' notice is a reserve in name only.

The briefing that makes a reserve useful

A standby speaker cannot improvise from nothing. They need a brief that is short enough to read on a phone and detailed enough to be useful. At minimum, it should include the session title and description, the intended timings, the slide deck or speaker notes, the names of the chair and any co-presenters, and a summary of the questions the audience is likely to ask. It should also include the practical details: arrival time, room, contact number, parking or station information and the name of the person who will meet them.

The brief should be sent at the same time as the final programme, not on the morning of the event. A reserve who has read the deck in advance can deliver a coherent session; a reserve who is handed a memory stick at the door is simply another form of crisis.

Paying fairly for a possibility

Standby work is work. It occupies a date, restricts other bookings and requires preparation for a session that may never happen. UK organisers should expect to pay a standby fee, separate from any fee payable if the reserve actually presents. A common arrangement is a modest availability fee, plus expenses, plus the full speaker fee if the reserve steps in. The exact figures will vary with the event and the speaker, but the principle is straightforward: the reserve should not be out of pocket for holding the date.

It is also sensible to put the arrangement in writing. A short agreement covering availability, preparation, expenses and the circumstances in which the full fee becomes payable protects both sides. For freelance speakers, particularly those who rely on event income, clarity about cancellation and standby terms is a mark of professional respect.

Rehearsing the handover without unsettling the programme

The handover should be rehearsed quietly, not announced. The chair and the reserve should agree a signal and a script: who will introduce whom, how the substitution will be described if it happens, and what will be said to the audience. In most cases the simplest approach is best. The chair introduces the reserve by name and subject, without a long explanation of the absence. The audience came for the topic, not the personnel.

The reserve should attend the technical rehearsal or at least a short briefing with the AV team. They should know how the slides advance, where the clicker is and how the room is laid out. If the programme includes a panel, the reserve should know which seat they would take and which questions they would be expected to answer.

It is equally important that the rest of the programme is not destabilised. Other speakers do not need to be told that a reserve is waiting unless their own session is affected. The chair and the event manager should hold the plan between them, and the public running order should remain as advertised until a change is genuinely necessary.

When the reserve steps up

If the substitution happens, the reserve should be introduced without apology. A brief, warm introduction is enough. The chair should avoid dwelling on the absent speaker, and the reserve should avoid beginning with a long explanation of why they are there instead. The audience will settle quickly if the session begins with substance.

Afterwards, the organiser should thank the reserve properly and pay promptly. A standby who is treated well will do it again, and will recommend the practice to others. A standby who is treated as an afterthought will not.

A conference is a live event, and live events go wrong. The measure of a good programme is not that nothing ever fails, but that failure is absorbed without the audience hearing the machinery. A named reserve, properly briefed and fairly paid, is one of the simplest ways to achieve that.