user_query: also, text Elizabeth saying surprise birthday for Avery this Saturday at 7pm
response_text: Surprise birthday for Avery this Saturday at 7pm. Got it. What else?
user_query: remind me to pick up the gift in the mall tomorrow at noon
response_text: Alright, I'll remind you tomorrow at noon.
user_query: Avery's birthday
response_text: OK. Avery's birthday. Anything else?
user_query: add jewellery (gift) to the list
response_text: Sure. Jewellery (gift) on your list called "Avery's Birthday". Anything else?
user_query: make a new list called Avery's birthday
response_text: OK, I made a list called "Avery's Birthday".
User: How much did I owe on my Visa, I mean, Mastercard last month?
Parse: Get_bill ( billing_date_span « last month » card_company « Mastercard » )