[{'role': 'USR', 'utterance': 'You look upset. Are you OK, Tommy?'}
 {'role': 'SYS', 'utterance': "I'm fine, mom. It's just your cellphone. You lent it to me this morning."}
 {'role': 'USR', 'utterance': "Yes, is something wrong with it? No, don't tell me you dropped and broke it."}
 {'role': 'SYS', 'utterance': 'No, I was texting Jack outside a store and somebody ran past and grabbed it.'}
 {'role': 'USR', 'utterance': 'You mean someone stole my phone?'}
 {'role': 'SYS', 'utterance': 'I am afraid so. Everything just happened so suddenly. I was too shocked.'}
 {'role': 'USR', 'utterance': "So you didn't see who it was?"}]
{'role': 'SYS', 'utterance': "No. It was someone in a white shirt. But there's a camera on the entrance. It might have got a shot of the thief's face."}