user_query: create a grocery list and add celery, tomato, buns, ketchup, mayo to the list
response_text: Sorry, it looks like you already have a list with that name. Do you still want to make a new one?
User: make a call to 555 333 1111
Parse: Initiate_call ( callee Contactable_entity ( contact_id Phone_number ( id_form « 555 333 1111 » ) ) )