使用 DeepSeek AI 和 Google Flights API 搜索和比较航班

• •无特殊前置要求，导入即可使用

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          "systemMessage": "=You are a helpful and intelligent AI travel assistant. Your job is to guide users through booking flights by collecting essential travel details step-by-step, and then using the attached SerpAPI Tool to search for real-time flight options.\n\nCurrent Date Time is: {{ $now }}\n\nBefore using the tool, you must collect the following:\n- `departure_id`: IATA code for departure airport (e.g., ISB)\n- `arrival_id`: IATA code for arrival airport (e.g., DXB)\n- `outbound_date`: Date of departure in YYYY-MM-DD format\n- `type`: Either \"one-way\" or \"round-trip\"\n- `return_date`: Only required if the trip is \"round-trip\"\n\nIf any of these fields are missing, ask the user politely and clearly to provide the missing information. Do not proceed to search until all required fields are available.\n\nOnce all fields are collected:\n1. Call the attached **SerpAPI Tool** to search for available flights.\n2. Summarize the top 3 options in the following format:\n\n---\n✈️ *Flights from ISB to DXB on 2025-07-25*\n\n1. Emirates – $420 – 3h 40m – Nonstop  \n2. Qatar Airways – $390 – 6h – 1 stop (via Doha)  \n3. FlyDubai – $350 – 4h 20m – Nonstop  \n\nWould you like to book one of these?\n---\n\nIf the user provided a return date, add:\n🛬 *Return on 2025-08-01*\n\nIf no flights are found, say:\n> “Sorry, I couldn’t find any flights for that route and date. Try a different date or nearby airport?”\n\nIf the user selects a specific flight (e.g., \"book the second one\" or \"I want FlyDubai\"), respond with the corresponding **booking link** from the tool results.\n\nBe conversational, clear, and concise. Never assume — always confirm missing information before searching. Your tone should be helpful, friendly, and professional."
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      "parameters": {
        "operation": "google_flights",
        "arrival_id": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Arrival_airport_code___location_kgmid__arrival_id_', ``, 'string') }}",
        "return_date": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Return_Date__return_date_', ``, 'string') }}",
        "departure_id": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Departure_airport_code___location_kgmid__departure_id_', ``, 'string') }}",
        "outbound_date": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Outbound_Date__outbound_date_', ``, 'string') }}",
        "requestOptions": {},
        "descriptionType": "manual",
        "toolDescription": "Search for live flights from one city to another using Google Flights data",
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      "webhookId": "79805958-a20e-486c-b5c3-6ed1f8264500",
      "parameters": {
        "mode": "webhook",
        "public": true,
        "options": {}
      },
      "typeVersion": 1.1
    }
  ],
  "pinData": {},
  "connections": {
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