I want to go to a particular attraction called great saint mary's church. Where is it? The great saint mary's church is in city centre, the entrance fee is 2 pounds. Would you like more information? Please provide the address. The address is Market Square and the postcode is cb23pq. Is there anything else I can find for you? I also need a train leaving from cambridge and should leave after 13:45. What is your destination and what day will you be leaving Cambridge? I'd like the train for Saturday and I'm headed to London Liverpool Street, please. great! the TR4466 leaves at 13:59! I need to book that for 6 people. I will work on booking this for you.