I need a train leaving from cambridge and should leave on tuesday.
There are several trains that may suit your needs. Do you have a particular destination in mind?
I would like one going to Kings Lynn and should arrive by 11:00
My last train of the day for Kings Lynn is TR7548 which departs at 10:11 and arrives by 10:58. Would that work for you? 
Yes, that's fine, thank you! That's all I need.
Thank you for using our service today.
it has been my pleasure.
Thank you for using our service. Have a great night. Goodbye. 
I'm sorry, I am also looking for an attraction in the town centre. Can you locate anything architectural?
The Holy Trinity Church on Market Street is a great attraction that meets your needs. Does that sound good?