user_query: I found tape., remove tape from the list
response_text: I couldn't find I found tape.
user_query: also add ribbons
response_text: Sure, I added ribbons.
user_query: add tape and scissors to the Christmas list
response_text: Sure, I added tape and scissors.
User: call 555-111-9999
Parse: Initiate_call ( callee Contactable_entity ( contact_id Phone_number ( id_form « 555-111-9999 » ) ) )