diff --git a/README.md b/README.md
index 92959f12..259b01d7 100644
--- a/README.md
+++ b/README.md
@@ -210,9 +210,10 @@ Topograph offers three endpoints for interacting with the service. Below are the
 - **URL Query Parameters:**
   - **uid**: Specifies the request ID returned by the topology request endpoint.
 - **Response:** Depending on the request's execution stage, this endpoint can return:
-  - "404 NotFound" if the configuration is not ready yet.
-  - "200 OK" if the request has been completed successfully.
-  - "500 InternalServerError" if there was an error during request execution.
+  - "200 OK" - The request has completed successfully.
+  - "102 Processing" - The request is still in progress and has not completed yet.
+  - "404 Not Found" - The specified request ID does not exist.
+  - Other error responses encountered by Topograph during request execution.
 
 Example usage:
 
diff --git a/pkg/server/trailing_delay_queue.go b/pkg/server/trailing_delay_queue.go
index 14c9b5ce..ced1a1b6 100644
--- a/pkg/server/trailing_delay_queue.go
+++ b/pkg/server/trailing_delay_queue.go
@@ -126,10 +126,12 @@ func (q *TrailingDelayQueue) Get(uid string) *Completion {
 		return res.(*Completion)
 	}
 
-	completion := &Completion{Message: fmt.Sprintf("no data for request ID %s", uid)}
+	completion := &Completion{}
 	if uid == q.uid {
-		completion.Status = http.StatusAccepted
+		completion.Message = fmt.Sprintf("request ID %s has not completed yet", uid)
+		completion.Status = http.StatusProcessing
 	} else {
+		completion.Message = fmt.Sprintf("request ID %s not found", uid)
 		completion.Status = http.StatusNotFound
 	}