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Exchange a booked flight for a different itinerary. No login required — authenticate with the Jinko booking reference and traveler last name.

WORKFLOW:
1. action="shop" with booking_ref + last_name + optional preferred_departure_date → browse exchange options
2. action="price" with booking_ref + last_name + offer_id → get exact pricing (fare difference, penalties)
3. If user confirms, action="commit" with booking_ref + last_name + offer_id + session_reference → execute the exchange
4. action="status" with booking_ref + last_name → poll exchange progress

IMPORTANT:
- Always shop before pricing, price before committing.
- Get explicit user confirmation before committing — exchanges may involve fare differences (additional payment or refund).
- The session_reference from pricing must be passed to commit.

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Parameters

NameTypeRequiredDescription
actionenum ("shop" | "price" | "commit" | "status")YesAction to perform: “shop” to browse exchange alternatives, “price” to get exact pricing for an offer, “commit” to execute the exchange, “status” to poll exchange progress
booking_refstringYesJinko booking reference (e.g. JNK-A7B3X9). Found in the booking confirmation email.
last_namestringYesLast name of the primary traveler on the booking.
order_idstringNoProvider order ID. Optional — provided only by authenticated DevPlatform callers who already resolved it.
providerstringNoProvider code (e.g., “travelfusion”, “sabre”). Usually auto-detected from the booking.
ticket_numbersarray<string>NoSpecific ticket numbers to exchange (for partial exchanges). Omit for full booking.
offer_idstringNoExchange offer ID returned from a previous shop action (canonical name). Required for price and commit actions. Preferred over exchange_offer_id.
exchange_offer_idstringNoDeprecated alias for offer_id. Use offer_id instead.
session_referencestringNoSession reference returned from a previous price action. Required for commit action.
preferred_departure_datestringNoPreferred departure date for the new flight (YYYY-MM-DD format). Used with shop action.

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Examples

Shop for exchange options (guest path): 
{
  "name": "flight_exchange",
  "arguments": {
    "action": "shop",
    "booking_ref": "JNK-ABC123",
    "last_name": "Doe",
    "preferred_departure_date": "2026-07-15"
  }
}
Response lists alternative itineraries with offer_id per option. Price a specific offer: 
{
  "name": "flight_exchange",
  "arguments": {
    "action": "price",
    "booking_ref": "JNK-ABC123",
    "last_name": "Doe",
    "offer_id": "exch_offer_abc"
  }
}
Returns price_delta (can be positive or negative), airline_penalty, service_fee, and a session_reference to commit against. Commit the exchange: 
{
  "name": "flight_exchange",
  "arguments": {
    "action": "commit",
    "booking_ref": "JNK-ABC123",
    "last_name": "Doe",
    "offer_id": "exch_offer_abc",
    "session_reference": "sess_xyz789"
  }
}
Poll status: 
{
  "name": "flight_exchange",
  "arguments": {
    "action": "status",
    "booking_ref": "JNK-ABC123",
    "last_name": "Doe",
    "exchange_reference": "EXC-abc123"
  }
}
The 4-step flow is serial, each step produces the token/reference the next needs. Always surface the priced delta (step 2) to the user for confirmation before calling commit (step 3).