user_query: make a list of planets
response_text: Got it, what do you want to call it?
user_query: planets
response_text: OK, I made a list called "Planets" and added planets.
User: Retrieve my health status for today, actually, yesterday on my Fitbit.
Parse: Get_health_stats ( health_stat_domain « health » provider « Fitbit » time_span « yesterday » )