user_query: delete my wedding, party, weekend lists
response_text: Sorry, I couldn't find any lists with that name.
user_query: add drinks to my weekend list
response_text: I couldn't find a list called "Weekend." Do you want me to make one?
user_query: yes
response_text: Alright, I made a list called "Weekend" and added drinks.
User: Let's resume my 2 mile walk.
Parse: Resume_exercise ( activity « walk » )