diff --git a/ee/api/chalicelib/core/assist_records.py b/ee/api/chalicelib/core/assist_records.py
index 18449dc14..e2caa4d56 100644
--- a/ee/api/chalicelib/core/assist_records.py
+++ b/ee/api/chalicelib/core/assist_records.py
@@ -41,9 +41,12 @@ def save_record(project_id, data: schemas_ee.AssistRecordSavePayloadSchema, cont
 def search_records(project_id, data: schemas_ee.AssistRecordSearchPayloadSchema, context: schemas_ee.CurrentContext):
     conditions = ["projects.tenant_id=%(tenant_id)s",
                   "projects.deleted_at ISNULL",
-                  "assist_records.created_at>=%(startDate)s",
-                  "assist_records.created_at<=%(endDate)s",
                   "assist_records.deleted_at ISNULL"]
+    if data.startDate:
+        conditions.append("assist_records.created_at>=%(startDate)s")
+    if data.endDate:
+        conditions.append("assist_records.created_at<=%(endDate)s")
+
     params = {"tenant_id": context.tenant_id, "project_id": project_id,
               "startDate": data.startDate, "endDate": data.endDate,
               "p_start": (data.page - 1) * data.limit, "p_limit": data.limit,
diff --git a/ee/api/schemas_ee.py b/ee/api/schemas_ee.py
index f5a3b8de0..50136ac02 100644
--- a/ee/api/schemas_ee.py
+++ b/ee/api/schemas_ee.py
@@ -137,8 +137,8 @@ class AssistRecordSavePayloadSchema(AssistRecordPayloadSchema):
 
 class AssistRecordSearchPayloadSchema(schemas._PaginatedSchema):
     limit: int = Field(default=200, gt=0)
-    startDate: int = Field(default=TimeUTC.now(-7))
-    endDate: int = Field(default=TimeUTC.now(1))
+    startDate: Optional[int] = Field(default=None)
+    endDate: Optional[int] = Field(default=None)
     user_id: Optional[int] = Field(default=None)
     query: Optional[str] = Field(default=None)
     order: Literal["asc", "desc"] = Field(default="desc")