i want to go to a particular attraction called great saint mary s church . where is it ?
user
the great saint mary s church is in city centre , the entrance fee is 2 pounds . would you like more information ?
assistant
please provide the address .
user
the address is market square and the postcode is cb23pq . is there anything else i can find for you ?
assistant
i also need a train leaving from cambridge and should leave after 13:45 .