diff --git a/backend/routes/availability.py b/backend/routes/availability.py
index 1d74193..570c097 100644
--- a/backend/routes/availability.py
+++ b/backend/routes/availability.py
@@ -100,7 +100,7 @@ async def set_availability(
         if sorted_slots[i].end_time > sorted_slots[i + 1].start_time:
             raise HTTPException(
                 status_code=400,
-                detail=f"Time slots overlap: {sorted_slots[i].end_time} > {sorted_slots[i + 1].start_time}",
+                detail=f"Time slots overlap on {request.date}: slot ending at {sorted_slots[i].end_time} overlaps with slot starting at {sorted_slots[i + 1].start_time}. Please ensure all time slots are non-overlapping.",
             )
     
     # Validate each slot's end_time > start_time
@@ -108,7 +108,7 @@ async def set_availability(
         if slot.end_time <= slot.start_time:
             raise HTTPException(
                 status_code=400,
-                detail=f"Slot end time must be after start time: {slot.start_time} - {slot.end_time}",
+                detail=f"Invalid time slot on {request.date}: end time {slot.end_time} must be after start time {slot.start_time}. Please correct the time range.",
             )
     
     # Delete existing availability for this date