user_query: Could you create a list for me
response_text: Got it, what do you want to call it?
user_query: Things for the trip
response_text: Alright, I made a list called "Things For The Trip".
user_query: Add toothpaste, mouthwash, laundry detergent, soap and hand sanitizer on it
response_text: OK. Those two things on your list called "Things For The Trip". Anything else?
user_query: ok can you add shampoo
response_text: Got it. Shampoo. Anything else?
user_query: things for the trip
response_text: What do you want to add?
User: Show me the amount owed for January I mean February.
Parse: Get_bill ( billing_date_span « February » )