[{'role': 'USR', 'utterance': 'I would like to have a custom-made skirt.'}
 {'role': 'SYS', 'utterance': 'May I take your size?'}
 {'role': 'USR', 'utterance': 'OK. I want it a bit close around the waist.'}
 {'role': 'SYS', 'utterance': 'No problem.'}
 {'role': 'USR', 'utterance': 'How long will it take?'}]
{'role': 'SYS', 'utterance': 'About a week.'}