> ## Documentation Index
> Fetch the complete documentation index at: https://toolathlon.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Train Ticket Plan

> Find one compatible round-trip combination of direct high-speed or EMU trains for travelers from Beijing South and Shanghai Hongqiao, using shared Qufu stations and keeping their arrival and departure times within 30 minutes.

> **Toolathlon-Verified** · Website task ID `16` · Canonical task `train-ticket-plan`
>
> [View the task source at `d57361c0`](https://github.com/hkust-nlp/Toolathlon/tree/d57361c0f1582cf9a0675c0753315bb6b004bd0e/tasks/finalpool/train-ticket-plan)

## Required Tools

<Card>
  <div className="tools-container">
    <div className="mcp-servers-container">
      <div className="mcp-servers-title">
        MCP Servers
      </div>

      <div className="mcp-servers-grid">
        <div className="mcp-server-item">
          <img alt="" aria-hidden="true" src="https://mintcdn.com/hkust/QdN2Y6f6c_GBV7Vj/icons/filesystem.png?fit=max&auto=format&n=QdN2Y6f6c_GBV7Vj&q=85&s=b4163322f58a72b712c697bdbeac85b9" style={{height: "20px", width: "20px", margin: 0, padding: 0, display: 'inline-block'}} width="64" height="64" data-path="icons/filesystem.png" />

          <span className="mcp-server-name">filesystem</span>
        </div>

        <div className="mcp-server-item">
          <img alt="" aria-hidden="true" src="https://mintcdn.com/hkust/QdN2Y6f6c_GBV7Vj/icons/12306.png?fit=max&auto=format&n=QdN2Y6f6c_GBV7Vj&q=85&s=da20248a4aa310f280f0d7926b5340af" style={{height: "20px", width: "20px", margin: 0, padding: 0, display: 'inline-block'}} width="64" height="64" data-path="icons/12306.png" />

          <span className="mcp-server-name">rail\_12306</span>
        </div>

        <div className="mcp-server-item">
          <img alt="" aria-hidden="true" src="https://mintcdn.com/hkust/v2Ad3GlVGK-9gZ_R/icons/terminal.png?fit=max&auto=format&n=v2Ad3GlVGK-9gZ_R&q=85&s=649c9eaee40fc4b5379e1faa127c84b7" style={{height: "20px", width: "20px", margin: 0, padding: 0, display: 'inline-block'}} width="64" height="64" data-path="icons/terminal.png" />

          <span className="mcp-server-name">terminal</span>
        </div>

        <div className="mcp-server-item">
          <img alt="" aria-hidden="true" src="https://mintcdn.com/hkust/ucpMq24upueB4g4R/icons/fetch.png?fit=max&auto=format&n=ucpMq24upueB4g4R&q=85&s=84d5b12d1720f1f17b5fb5c5b9901074" style={{height: "20px", width: "20px", margin: 0, padding: 0, display: 'inline-block'}} width="14" height="14" data-path="icons/fetch.png" />

          <span className="mcp-server-name">fetch</span>
        </div>
      </div>
    </div>

    <div className="local-tools-container">
      <div className="mcp-servers-title">
        Local Tools
      </div>

      <div className="local-tools-grid">
        <div className="local-tool-item">
          <img alt="" aria-hidden="true" src="https://mintcdn.com/hkust/QdN2Y6f6c_GBV7Vj/icons/google_search.png?fit=max&auto=format&n=QdN2Y6f6c_GBV7Vj&q=85&s=97e296f59b192ca722abc473a9b8f609" style={{height: "20px", width: "20px", margin: 0, padding: 0, display: 'inline-block'}} width="64" height="64" data-path="icons/google_search.png" />

          <span className="local-tool-name">web\_search</span>
        </div>

        <div className="local-tool-item">
          <img alt="" aria-hidden="true" src="https://mintcdn.com/hkust/ucpMq24upueB4g4R/icons/claim_done.png?fit=max&auto=format&n=ucpMq24upueB4g4R&q=85&s=94ee5a6cf860bae09936a702c6c6c648" style={{height: "20px", width: "20px", margin: 0, padding: 0, display: 'inline-block'}} width="14" height="14" data-path="icons/claim_done.png" />

          <span className="local-tool-name">claim\_done</span>
        </div>

        <div className="local-tool-item">
          <Icon icon="filter-list" size={20} color="#4286f6" />

          <span className="local-tool-name">handle\_overlong\_tool\_outputs</span>
        </div>

        <div className="local-tool-item">
          <Icon icon="bars-progress" size={20} color="#4286f6" />

          <span className="local-tool-name">manage\_context</span>
        </div>

        <div className="local-tool-item">
          <img alt="" aria-hidden="true" src="https://mintcdn.com/hkust/ucpMq24upueB4g4R/icons/history.png?fit=max&auto=format&n=ucpMq24upueB4g4R&q=85&s=25d885756cf14ced8475bd94adfdecb7" style={{height: "20px", width: "20px", margin: 0, padding: 0, display: 'inline-block'}} width="14" height="14" data-path="icons/history.png" />

          <span className="local-tool-name">history</span>
        </div>
      </div>
    </div>
  </div>
</Card>

## Instruction

My friend and I have planned a trip to qufu(曲阜). We will depart on the evening of next Thursday (trains departing after 5 PM) and leave on Sunday afternoon (trains departing between 2 PM and 6 PM). I am in 北京 and will depart from and return to Beijing Nan station(北京南站). She is in Shanghai(上海) and will depart from and return to Shanghai Hongqiao(上海虹桥). Can you help us find round-trip tickets for each of us? We need direct high-speed trains (高铁) or EMU trains (动车). We must arrive at the same station in qufu(曲阜), and we must also depart from the same station in qufu(曲阜). However, the arrival station and the departure station do not have to be the same. Another requirement is that the difference in our arrival times should not exceed 30 minutes, and similarly, the difference in our departure times on the day we leave should not exceed 30 minutes. Can you tell me which trains we should take for our round trip? Please ignore ticket availability for now and just return any one possible combination in the format specified in format.json. If you cannot find a suitable combination for any given day, return null for that day:
\{
"thursday": null,
"sunday": null
}
Finally, please fill in the file `train-ticket-plan.json` with your result, and strictly follow the format in `format.json`. Please use the official English translation for each railway station.

## Initial State

### Local Workspace

<div className="file-tree">
  <a href="https://github.com/hkust-nlp/Toolathlon/tree/d57361c0f1582cf9a0675c0753315bb6b004bd0e/tasks/finalpool/train-ticket-plan/initial_workspace">workspace</a>/
  └── format.json
</div>

## Legacy Trajectories

<Warning>
  These replays were produced on the original Toolathlon release. They are retained for historical inspection and are not Toolathlon-Verified results.
</Warning>

* ✅ [Claude-4.5-Sonnet](https://toolathlon-traj.xyz/claude-4.5-sonnet_train-ticket-plan)
* ❌ [Deepseek-v3.2-Exp](https://toolathlon-traj.xyz/deepseek-v3.2-exp_train-ticket-plan)