Update app.py

app.py

@@ -55,7 +55,7 @@ def medical_assistant_interaction(pulse_rate, blood_pressure_systolic, blood_pre
 
         response = gai.chat(
             model="models/chat-bison-001",  
-            messages=[{"role": "user", "content": response_text}],
+            messages=[{"content": response_text}],
             #max_output_tokens=150
         )
         assistant_message = response.last['content'].strip()