improve service

app/Http/Requests/V3/Mission/TransportaionUnit/AllocateRequest.php

@@ -36,13 +36,13 @@ class AllocateRequest extends FormRequest
         return [
             function (Validator $validator) {
                 $duplicateMission = Mission::query()->where('machine_id', '=', $this->machine_id)
-                    ->whereBetween('start_date', [$this->mission->start_date, $this->mission->end_date])
-                    ->orWhereBetween('end_date', [$this->mission->start_date, $this->mission->end_date])
+                    ->where('start_date', '<=', $this->mission->end_date)
+                    ->where('end_date', '>=', $this->mission->start_date)
                     ->exists();
 
                 if ($duplicateMission) {
                     $validator->errors()->add(
-                        'machine',
+                        'machine_id',
                         'خودروی مورد نظر در این زمان رزرو می باشد'
                     );
                 }