i am looking for a moderate -ly priced restaurant in the centre of cambridge .
user
there are 21 restaurant -s that meet your needs . would you like to narrow your search by type of food ?
assistant
yes , i would like to find something with south african food .
user
there are no restaurant -s in the centre of cambridge that serves south african food . would you like to try a different type or a different price range ?
assistant
what about 1 in the centre of cambridge that serves spanish food ?
user
there is la tasca located at 1416 bridge street . would you like me to book a table for you ?
assistant
yes please , make a reservation for 8 people at 13:00 on friday .
user
i am sorry , but it looks like they have no openings at that time . would you like to try a different day or time ?
assistant
yes please try 12:00 with the reservation for 8 and once made , send me the reference number .