I am looking to find a train. It needs to go to Cambridge and it has to leave on Monday.
I have 202 trains travelling to Cambridge on Monday, could you be more specific on when you'd like to depart and from where?
I'd like to depart from Stevenage after 19:45.
I have one train departing at 19:54, one at 21:54, and the last one at 23:54. Will any of those work?
Yes, 19:54 will be fine. I'd like tickets for 5 people. 
Congratulations! Your booking was successful with a reference number of DMEL46A6 and a fee of 64 GBP. Can I help you with anything else?
That is all.  Thank you.
You're welcome. Enjoy your day.