[{'role': 'USR', 'utterance': 'I came to this lab to have my blood drawn.'}
 {'role': 'SYS', 'utterance': 'You are in the right place. Roll up your left sleeve and have a seat.'}
 {'role': 'USR', 'utterance': 'What am I being tested for?'}
 {'role': 'SYS', 'utterance': 'Your doctor wants to know what your white blood cell count is.'}
 {'role': 'USR', 'utterance': 'What does my white blood cell count tell him?'}
 {'role': 'SYS', 'utterance': 'Usually if your white count is off, the doctor suspects an infection.'}
 {'role': 'USR', 'utterance': 'How much will it hurt?'}]
{'role': 'SYS', 'utterance': 'It is only a pin prick. I have to put this tourniquet on your arm to make the vein easier to find.'}