i am staying in the centre of cambridge , can you tell me about place -s to go there ?
user
sure , what type of place interests you ?
assistant
it does not matter but can i get their entrance fee .
user
castle galleries is located in the centre of town and are free to enter .
assistant
ok , that sounds great . i also need a train to get me to cambridge .
user
i have several options but if you let me know your preferred departure point , day and time i can recommend the best option for you .
assistant
i will be departing from kings lynn on saturday .
user
i found 19 . what time would you like to go
assistant
i need to leave after 20:00 .
user
i have 4 trains that match your criteria . the first leaves at 20:11 , then 21:11 . 22:11 and 23:11 . which 1 would you like to book ?
assistant
please book the 1 for 21:11 please .