Update app.py

app.py

@@ -81,6 +81,13 @@ def process_delivery_query(query, user_session_id, request: gr.Request):
     """
     if not query.strip():
         return "<div style='color:#d32f2f; padding:20px; background:#ffebee; border-radius:8px; border-left:4px solid #d32f2f;'>Please enter a query</div>", None, user_session_id
+
+    stripped_query = query.strip()
+    if not any(c.isalnum() for c in stripped_query):
+        return "<div style='color:#d32f2f; padding:20px; background:#ffebee; border-radius:8px; border-left:4px solid #d32f2f;'>Please enter a valid query with actual text</div>", None, user_session_id, "❌ Please enter a valid query with actual text"
+    
+    if len(stripped_query) < 2:
+        return "<div style='color:#d32f2f; padding:20px; background:#ffebee; border-radius:8px; border-left:4px solid #d32f2f;'>Please enter a more detailed query</div>", None, user_session_id, "❌ Please enter a more detailed query"
     
     try:
         user_id = get_user_id(request)