user_query: Go to sleep at 9 in the evening.
response_text: Alright, I'll remind you on Wednesday at 9:00 PM.
user_query: Make reminder.
response_text: What's the reminder?
User: Crédit Agricole, how much do I owe for my Visa card this month ?
Parse: Get_bill ( billing_date_span « this month » card_company « Visa » provider « Crédit Agricole » )