Can you help me find a train going to cambridge that arrives by 18:30?
Okay, I think I can help you. Where will be coming from? 
I will be departing kings lynn. 
The TR3677 arrives at 17:58. Would you like to book it?
Yes for 2 people on a Tuesday please. And I would like the reference number.
I'm going with TR5793 since you are travelling on Tuesday arriving at the same time. The total fee is 19.6 GBP payable at the station .
Reference number is : 4NLGW7WM.
Thanks so much. Can you also help me look for the Carolina Bed and Breakfast? 
Carolina Bed and Breakfast is in the East, it is a guesthouse in the moderate price range. Would you like to book a room? 
Yes please. Two nights from Tuesday for two people.
I got your room booked at the Carolina Bed and Breakfast. Your reference is FYLDIZUF. Is there anything else I can help you with today?
I need a room for the same group of people for 1 night on the same day. And I need the reference number then too please
Ok I will book it for you