user_query: go shopping for a gift
response_text: Got it, do you want to add time?
user_query: create the task
response_text: What's the reminder?
user_query: don't
response_text: Nothing's been set.
user_query: create a task called go shopping for a gift
response_text: Got it, do you want to add time?
User: I want to see messages from last Wednesday.
Parse: Get_message_content ( message Electronic_message ( date « last Wednesday » medium « messages » ) )