diff --git a/matrix_alertbot/command.py b/matrix_alertbot/command.py
index 8560c77..058b8db 100644
--- a/matrix_alertbot/command.py
+++ b/matrix_alertbot/command.py
@@ -123,7 +123,7 @@ class Command:
             await send_text_to_room(
                 self.client,
                 self.room.room_id,
-                f"Sorry, I couldn't find {count_alert_not_found} alerts, and thus I couldn't acknowledge them.",
+                f"Sorry, I couldn't find {count_alert_not_found} alerts, therefore I couldn't create their silence.",
             )
 
         if count_created_silences > 0:
@@ -177,7 +177,7 @@ class Command:
             await send_text_to_room(
                 self.client,
                 self.room.room_id,
-                f"Sorry, I couldn't find {count_alert_not_found} alerts, and thus I couldn't unacknowledge them.",
+                f"Sorry, I couldn't find {count_alert_not_found} alerts, therefore I couldn't remove their silences.",
             )
 
         if count_removed_silences > 0: