user_query: add milk to the grocery list
response_text: I got: Add milk to the grocery list.. Ready to send it?
user_query: send a text to 555-555-9999
response_text: OK, what's the message?
User: Can you tell me what my heart rate was for this morning?
Parse: Get_health_stats ( health_stat_type « heart rate » time_span « this morning » )