✨ refactor: update UI title and enhance user input options

Gradio_UI.py

@@ -261,10 +261,10 @@ class GradioUI:
     def launch(self, **kwargs):
         import gradio as gr
 
-        with gr.Blocks(title="Travel Planning Assistant", fill_height=True) as demo:
+        with gr.Blocks(title="Travel Planning Agent", fill_height=True) as demo:
             gr.Markdown(
                 """
-                # Travel Planning Assistant
+                # Travel Planning Agent
                 I can help you plan your trips, find the best time to travel, and provide information about destinations. Ask me about travel costs, best seasons to visit, or specific routes!
                 """
             )
@@ -280,16 +280,21 @@ class GradioUI:
                 resizeable=True,
                 scale=1,
             )
-            # If an upload folder is provided, enable the upload feature
-            if self.file_upload_folder is not None:
-                upload_file = gr.File(label="Upload a file")
-                upload_status = gr.Textbox(label="Upload Status", interactive=False, visible=False)
-                upload_file.change(
-                    self.upload_file,
-                    [upload_file, file_uploads_log],
-                    [upload_status, file_uploads_log],
-                )
-            text_input = gr.Textbox(lines=1, label="Chat Message", placeholder="Ask me anything about travel, destinations, or trip planning...")
+            text_input = gr.Textbox(
+                label="Ask me anything about travel",
+                placeholder="Type your travel question here...",
+            )
+            gr.Examples(
+                examples=[
+                    "What is the cheapest month to travel to Tokyo, Japan?",
+                    "Find the best flight options from Denver, Colorado to Tokyo, Japan.",
+                    "What is the typical weather in Tokyo during April?",
+                    "What are the top must-visit attractions in Tokyo for first-time travelers?",
+                    "How can I get from Narita Airport to Shinjuku using public transportation?"
+                ],
+                inputs=text_input,
+                label="Example Questions"
+            )
             text_input.submit(
                 self.log_user_message,
                 [text_input, file_uploads_log],