diff --git a/backend/app/service/BusinessTripService.php b/backend/app/service/BusinessTripService.php
index eccb519..1829b82 100644
--- a/backend/app/service/BusinessTripService.php
+++ b/backend/app/service/BusinessTripService.php
@@ -179,6 +179,15 @@ class BusinessTripService
                     'start_date' => $businessTrip->start_date,
                     'end_date' => $businessTrip->end_date,
                     'destination' => $businessTrip->destination,
+                    'estimated_cost' => $businessTrip->estimated_cost,
+                    'itineraries' => $businessTrip->itineraries->map(function ($item) {
+                        return [
+                            'destination' => $item->destination,
+                            'start_date' => $item->start_date,
+                            'end_date' => $item->end_date,
+                            'estimated_cost' => $item->estimated_cost,
+                        ];
+                    })->toArray(),
                     'approvers' => $approvers,
                     'cc_users' => $ccUsers,
                 ],