hello()
system
hello , welcome to the parlance dialogue system ? you can ask for restaurant -s by area , price range or food type . how may i help you ?
negate()
user
no i'm looking for a restaurant
request((_:search,near,?);(_:search,type,'Restaurant'))
system
where would you like it to be near to ?
user
_:system greeted _:user
_:system greeted _:user
_:search near ?
_:search type Restaurant