user_query: Please call Cooper Allen
response_text: Sorry, who do you wanna call?
user_query: I want to call Cooper
response_text: Here are some listings for Cooper within 8 mi.
User: Log 4 sets, sorry 3 sets of 2 breaststroke.
Parse: Log_exercise ( activity « breaststroke » number_of_repetitions « 2 » number_of_sets « 3 » )