user_query: Pack for vacation
response_text: Sure, I'll remind you on Thursday at 8:00 AM.
user_query: I need to create a reminder for Thursday morning
response_text: Alright, on Thursday at 8:00 AM. What's the reminder?
User: Show me the PDF statement from March for my electric bill.
Parse: Get_bill ( account_type « electric » billing_date_span « March » document_format « PDF » )