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?