try

app.py

@@ -126,6 +126,10 @@ with gr.Blocks(theme='hmb/amethyst') as demo:
 
     
     # Chat interface
+    gr.ChatInterface(
+    fn=respond,
+    examples=["Best birthday gift?", "Romantic anniversary idea?", "Budget-friendly gifts?"]
+)
 
 
 demo.launch()