[Nit] Fix a typo (openai#51)

examples/airline/configs/agents.py

@@ -23,7 +23,7 @@ def transfer_to_lost_baggage():
 
 
 def transfer_to_triage():
-    """Call this function when a user needs to be transferred to a differnt agent and a different policy.
+    """Call this function when a user needs to be transferred to a different agent and a different policy.
     For instance, if a user is asking about a topic that is not handled by the current agent, call this function.
     """
     return triage_agent