I am looking for a train leaving Cambridge.
We have quite a few, I'm sure we'll be able to get you where you want to go. Where is that, exactly?
I would like to go to leicester and leave on friday.
I have quite a few trains that fit your criteria. Is there a certain time you need to leave or arrive by?
Departing from cambridge and I want to arrive somewhere around 20:00, can you get me 7 tickets and I'll need the reference number too.
The TR2508 arriving at 19:06 sound okay to you?
That sounds great, thank you. Could you book that for me for 7 people? I will need the reference number as well. 
I completed your booking. The reference number is C11MOBV7. Is there anything else I could help you with? 
Yes , I also need to find a place to stay. Preferably 4 stars and a guesthouse.
Sure! Our database contains 18 guesthouses rated 4 stars. To narrow down the search, could you tell me in what part of town you'd like to stay?
I definitely want to stay in the east part of town.
I have six entries matching your request.  Would you prefer cheap or moderate price range?
The price range doesn't matter, but could you pick one and book it for 3 nights for 7 people starting Tuesday?
I'm sorry.  There are no rooms available for that stay.  Can you choose a different day or shorter stay?
How about 1 night?
I was able to book the A and B Guest House for 1 night.  Booking was successful.
Reference number is : 995PR933.
thank you, you've been quite helpful
Glad to help. Have a lovely day.