Greetings! Can you help me in locating a train to get me to Cambridge?
Certainly. Can you please tell me the location you are departing from and what day you would like to leave?
Sure.  I need to leave on Friday from Broxbourne.  
We have several trains for that day. Did you have a particular time you wanted to leave?
I am going to need to leave sometime later than 17:15.  I will need 6 seats.
There are 7 trains available. When would you like to arrive bye?
It doesn't matter, I just need to leave sometime after 17:15. 
I can book you on TR4322 from broxbourne to cambridge. It leaves at 17:32 and arrives by 18:32. Would you like that?
Yes please, for 6 people.
I booked 6 seats on TR4322, the price is 107.4 GBP and your reference number is RZUTECIJ. Is there anything else I can do for you?
That's all I needed for today. Thank you
I'm happy to be of service. Enjoy your time in Cambridge!