I am looking for a train departing from london kings cross
When would you like to depart London Kings Cross?
Yes departing from there heading to Cambridge on Saturday.
What time would you like to depart or arrive?
The train should go to cambridge and should arrive by 14:00. 
I have train TR7309 departing London Kings Cross at 11:17 and arriving in Cambridge at 12:08.
Please book that for 5 people.
Booking was successful, the total fee is 94.4 GBP payable at the station. Reference number is : 7UGGORNQ.
Thank you, good bye.
Great! Have a nice day!