[{'role': 'USR', 'utterance': "I've been working hard for a whole year. I really need a break."}
 {'role': 'SYS', 'utterance': "That's true. You need to take some time off to relax."}
 {'role': 'USR', 'utterance': "You said it. I'm looking forward to my annual vacation."}
 {'role': 'SYS', 'utterance': 'When are you going to take your vacation?'}
 {'role': 'USR', 'utterance': "Later this month. I can't wait!"}]
{'role': 'SYS', 'utterance': "I really envy you. You know I'm not taking my vacation until December."}