user_query: create a list for students
response_text: Alright, I made a list called "Students".
user_query: add catherine to students
response_text: Alright. Catherine to students on your list called "Students". Anything else?
user_query: clear all items from students
response_text: Are you sure you want to go ahead and clear it?
User: dial Jack Lee
Parse: Initiate_call ( callee Personal_contact ( person « Jack Lee » ) )