[{'role': 'USR', 'utterance': "John, shall we go to Sun Store? I have decided to buy that Murrberry handbag. Anyway,I'm not carrying this one to Mary's wedding."}
 {'role': 'SYS', 'utterance': 'But, Jane, why not rent one with Handbag Hire? Instead of $ 990,pay $ 50,and you have it for a whole week.'}
 {'role': 'USR', 'utterance': 'Sounds great, but I never knew I can rent a handbag.'}
 {'role': 'SYS', 'utterance': 'Handbag Hire is a new business. It was founded two months ago. Its collection covers many designer handbags.'}
 {'role': 'USR', 'utterance': 'So... for the price of one Murrberry, I can use a different bag each week for twenty weeks?'}
 {'role': 'SYS', 'utterance': 'Absolutely. And if you like one of them, you can choose to buy it at a discounted rate. Of course the price varies by age and condition. For example, a $ 1500 Murrberry bag can sell for just $750.'}
 {'role': 'USR', 'utterance': 'Great, but how do I rent? By telephone? Or in person?'}]
{'role': 'SYS', 'utterance': 'Either. And more conveniently, it accepts online orders.'}