[{'role': 'USR', 'utterance': 'Your total comes to $ 36. 78.'}
 {'role': 'SYS', 'utterance': 'Put it on my VISA.'}
 {'role': 'USR', 'utterance': "There's a problem with your card."}
 {'role': 'SYS', 'utterance': "What's wrong with it?"}
 {'role': 'USR', 'utterance': 'I believe it was declined.'}
 {'role': 'SYS', 'utterance': "You're kidding me!"}
 {'role': 'USR', 'utterance': 'Do you have another card I could try?'}]
{'role': 'SYS', 'utterance': 'I only have one card.'}