Task-oriented dialogue about: train

Need the train schedule from ely to cambridge
What day would you like to travel?
I am traveling friday.
The first train leaves at 05:35 and has a duration of 17 minutes. Trains leave every two hours thereafter ending at 23:35.
Do you have one leaving after 15:30?
There is a train that leaves at 15:35.
Ok I will book that for you and get you a confirmation number
Just to be clear, you want me to book 1 seat on train TR4389, departing Ely at 15:35. Is that correct?
No. I don't need a booking. Sorry. I do need help finding an attraction.
There are several attractions what part of town