user_query: Call the 3rd one.
response_text: Sorry. It looks like there's no number listed.
user_query: Call the fourth one.
response_text: Who do you wanna call?
user_query: Call Frisch's in Cincinnati, please.
response_text: You've got several choices. Which would you like?
User: Pay the cell phone bill on Saturday the 27th.
Parse: Pay_bill ( service_type « cell phone » time « Saturday the 27th » )