Plan a family weekend in Hershey with Gemini Spark

PartialEvidence: Article or interviewPosted Jun 2, 2026Last checked Nov 1, 2026

Gemini Spark planned David Pierce's family weekend in Hershey using details from email, but failed to book the Airbnb.

Source checked Nov 1, 2026
Results shared
Limitations noted

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Original prompt

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I’m going to be in Hershey PA with my wife, two kids, and dog the weekend of July 18th. Can you make a plan for the whole weekend, including places to stay, eat, things to do, and everything else?

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Before you start, ask me 1–3 short questions about the details below and wait for my answers. Once I've answered, confirm the plan in one line and run the whole task start to finish.

Goal: Plan a family weekend trip that fits our kids' routines and our dog, with places I can book myself.

Questions to ask me first:
- Where and which dates, and who's coming (ages of kids, any pets)?
- What's your budget for the stay and food?
- Any plans already booked, and any naps or bedtimes to work around?

Inputs (fill in or confirm):
- Destination and dates: [PLACE / DATES]
- Travelers, kids' ages and pets: [WHO]
- Budget: [BUDGET]
- Things already booked: [BOOKINGS]

Rules:
- Only use my email or calendar if I say so, and tell me each detail you took from them.
- Pick pet-friendly places to stay and eat, and say how you checked.
- Build the days around nap time and bedtimes.
- Don't book or pay for anything; give me links and what I'll need to book.

Checkpoint: Show me a one-line plan for each day before filling in details, so I can change it.

If you get stuck: If you can't confirm a place allows dogs or has availability, say so.

Verify before you finish: Check each day's times and travel distances so the plan is doable with kids.

Output: A day-by-day plan with places to stay, eat and visit, plus booking links.

Done when: I have a weekend plan I can book myself and share with my family.

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Destination and dates

Travelers, kids' ages and pets

Budget

e.g. 50 dollars

Things already booked

Your prompt

Before you start, ask me 1–3 short questions about the details below and wait for my answers. Once I've answered, confirm the plan in one line and run the whole task start to finish.

Goal: Plan a family weekend trip that fits our kids' routines and our dog, with places I can book myself.

Questions to ask me first:
- Where and which dates, and who's coming (ages of kids, any pets)?
- What's your budget for the stay and food?
- Any plans already booked, and any naps or bedtimes to work around?

Inputs (fill in or confirm):
- Destination and dates: [PLACE / DATES]
- Travelers, kids' ages and pets: [WHO]
- Budget: [BUDGET]
- Things already booked: [BOOKINGS]

Rules:
- Only use my email or calendar if I say so, and tell me each detail you took from them.
- Pick pet-friendly places to stay and eat, and say how you checked.
- Build the days around nap time and bedtimes.
- Don't book or pay for anything; give me links and what I'll need to book.

Checkpoint: Show me a one-line plan for each day before filling in details, so I can change it.

If you get stuck: If you can't confirm a place allows dogs or has availability, say so.

Verify before you finish: Check each day's times and travel distances so the plan is doable with kids.

Output: A day-by-day plan with places to stay, eat and visit, plus booking links.

Done when: I have a weekend plan I can book myself and share with my family.

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AI tool

Gemini Spark

Outcome

The Verge's David Pierce asked Gemini Spark, Google's agent, to plan a weekend in Hershey, Pennsylvania, with a spouse, two kids and a dog. Spark pulled details from Pierce's Google account without being told: the dog's name, Frida, a sensible 1:30PM nap time, and a concert, presumably from a Ticketmaster confirmation in Pierce's email. When asked, it switched its stay recommendation from a hotel to an Airbnb, put the plan in a Google Doc and emailed it to Anna, Pierce's wife. Spark failed when asked to book the Airbnb: it said it was unable to log in, handle payment or complete bookings, and offered available places instead. Pierce also described a deeply creepy feeling at how much Spark knew.

Evidence: Article or interviewA newsletter, journalist or interview account of what happened.

Known limitations

PartialThe source says it only partly worked, or had a significant problem a person had to deal with.

What went wrong: Spark planned the weekend and shared it, but it couldn't book the Airbnb, and pulling details from Pierce's email felt deeply creepy.

Source

Posted: Jun 2, 2026 by David Pierce (The Verge)
Last checked: Nov 1, 2026
Method:: How we verify

https://www.theverge.com/ai-artificial-intelligence/941388/gemini-spark-ai-agent-trip-planning

Context: Pierce tried Spark early; it's part of Google's $99 / month AI Ultra plan.