Hi. Help me with a train schedule, please.
I'd be happy to help. Let's start with a few questions; which station would you like to depart from and where would you like to go?
I am looking to depart from Cambridge, and I am going to London Kings Cross.
Okay, great. What day are you wanting to travel?
I would like to go on Wednesday.
how about TR3702 that leaves at 05:00?
That sounds great! I'd like to buy one ticket please. 
Could you please confirm if you need to arrive by any particular time?
I really must arrive by 18:15 to make my meeting.  
TR3843 will arrive by 17:51, does this suit your needs?
Yes, can you book it for 5 people and please give me the reference number.
Your reference number is KPVWZHWS. Is there anything else I can help you with?
That's everything. Thanks so much for your help. Goodbye.
Thank you for contacting Cambridge TownInfo centre.  Have a nice day!