Update app.py

app.py

@@ -21,7 +21,7 @@ sys_prompt = read('system_prompt.txt')
     
 def process_text(text_input, unit):
     if text_input:
-        completion = client.chat.completions.create(
+        response = client.chat.completions.create(
             model=MODEL,
             messages=[
                 {"role": "system", "content": f" You are a helpful {unit} doctor." + sys_prompt},