user_query: show tasks
response_text: You have nine reminders. Here are three: today at 3:00 PM, "check the mail" Today at 7:00 PM, "make cookies" Today at 9:00 PM, "Bake cookies". Do you want to hear more?
User: How was my water no gas bill last month?
Parse: Get_bill ( account_type « gas » billing_date_span « last month » )