user_query: Call 555-111-0001
response_text: Calling (555) 111-0001.
user_query: Could you give 555-111-0001 a buzz for me?
response_text: Here's what I found on the web
User: Sorry, I meant for you to call 555-111-0002
Parse: Initiate_call ( callee Contactable_entity ( contact_id Phone_number ( id_form « 555-111-0002 » ) ) )