I need a train to cambridge
Please be specific about when you are leaving and by what time you intend to arrive to help me to narrow down.
I'd like to depart from Ely on Wednesday after 12:15.
There is a train at 13:35 that cost 4.40 pounds. Would you like to take it?
Yes please. Could you also give me the train ID?
Their ID is TR1039.
Ok, thank you. I also need some help finding a guesthouse.  I also would like free wifi.
We've got a lot of options for guesthouses, what area do you want to stay in?
I would like to stay in Cambridge please.
Ok, centre, north, east, west, or south side?
I'd like a cheap place in the centre for 8 people and 5 nights starting Wednesday.
Alexander Bed and Breakfast, 56 Saint Barnabas Road is inexpensive and rated 4 stars. Would you like me to book that? 
Yes, that sounds good.
The booking for Alexander Bed and Breakfast was denied for 8 guests staying five days, starting on Wednesday. Would it be possible to plan a shorter or longer stay?
That's fine, I'd like to book it for 4 nights then.
OK, I have you booked at alexander bed and breakfast for 4 nights. The Reference Number is : 741JC8HU. Anything else I can help you with today?
That takes care of it.  Thank you very much.
You are welcome. Have a very nice stay.