"estion: Any popular landmarks in Buenos Aires?
{'location': 'Buenos Aires', 'task': 'browsing' }","swer: {'departure city': 'Penang', 'arrival city': 'Singapore', 'departure date': '10 Mar', 'returning date': '17 Mar', 'flight budget': '700', 'headcount': 1, 'task': 'search flight'}"