diff --git a/src/alpine_bits_python/conversion_service.py b/src/alpine_bits_python/conversion_service.py
index 27968c1..7ccf05d 100644
--- a/src/alpine_bits_python/conversion_service.py
+++ b/src/alpine_bits_python/conversion_service.py
@@ -1042,87 +1042,6 @@ class ConversionService:
         )
         return matches[0]
 
-    async def _match_by_guest_details(
-        self,
-        hotel_id: str | None,
-        guest_first_name: str | None,
-        guest_last_name: str | None,
-        guest_email: str | None,
-        session: AsyncSession | None = None,
-    ) -> Reservation | None:
-        """Match reservation by guest name and email using cached data.
-
-        This method uses the reservation cache populated at the start of XML processing.
-        If cache is not available, falls back to database queries.
-
-        Args:
-            hotel_id: Hotel ID for filtering
-            guest_first_name: Guest first name
-            guest_last_name: Guest last name
-            guest_email: Guest email
-            session: AsyncSession to use. If None, uses self.session.
-
-        Returns:
-            Matched Reservation or None
-
-        """
-        if session is None:
-            session = self.session
-
-        # Try to use cache first
-        if self._cache_initialized and self._reservation_cache:
-            all_reservations = []
-
-            # Get reservations from cache for this hotel
-            if hotel_id and hotel_id in self._reservation_cache:
-                # Extract reservations AND reattach their cached hashed_customer relationships
-                for reservation, hashed_customer in self._reservation_cache[hotel_id]:
-                    if reservation.customer:
-                        # Manually set the hashed_version from cache to ensure it's available
-                        reservation.customer.hashed_version = hashed_customer
-                    all_reservations.append(reservation)
-            elif not hotel_id:
-                # If no hotel_id specified, use all cached reservations
-                for reservations_list in self._reservation_cache.values():
-                    for reservation, hashed_customer in reservations_list:
-                        if reservation.customer:
-                            # Manually set the hashed_version from cache to ensure it's available
-                            reservation.customer.hashed_version = hashed_customer
-                        all_reservations.append(reservation)
-
-            if all_reservations:
-                _LOGGER.debug(
-                    "Using cached reservations for matching (hotel=%s, count=%d)",
-                    hotel_id,
-                    len(all_reservations),
-                )
-                return self._match_reservations_by_guest_details(
-                    all_reservations,
-                    guest_first_name,
-                    guest_last_name,
-                    guest_email,
-                )
-
-        # Fallback: Query database if cache is not available or empty
-        _LOGGER.debug(
-            "Cache unavailable or empty, falling back to database query (hotel=%s)",
-            hotel_id,
-        )
-        from sqlalchemy.orm import selectinload
-        query = select(Reservation).options(
-            selectinload(Reservation.customer).selectinload(Customer.hashed_version)
-        )
-
-        if hotel_id:
-            query = query.where(Reservation.hotel_code == hotel_id)
-
-        db_result = await session.execute(query)
-        all_reservations = db_result.scalars().all()
-
-        return self._match_reservations_by_guest_details(
-            all_reservations, guest_first_name, guest_last_name, guest_email
-        )
-
     def _filter_reservations_by_guest_details(
         self,
         reservations: list[Reservation],