Hello. I'm hoping to find a guesthouse in the north part of Cambridge. Are there any?
Indeed there are. In fact, there are 11. If you'd like an inexpensive, 4 star guesthouse with free internet and free parking, Worth House is a good choice.
I'm looking for a place to stay that is cheap located in the north.
I would suggest this one city centre north b and b.
Sure, I need a reservation for 4 people and 2 nights starting on Monday please. 
I have made the booking the Reference number is E6UVD9OL.  Is there anything else i can help you with?
Would you mind finding some info on a train into Cambridge for me?
I could do that for you. Can you give me a time ?
Yes, we will be coming from bishops stortford on Monday. I would like to leave after 19:30.
Their is a train that leaves Monday at 21:29. it costs 10.10 pounds and it's a 38 minute trip. Would you like me to book that for you?
Yes, please. Can you book me 4 tickets?
Booking was successful, the total fee is 40.4 GBP payable at the station. Reference number is : H4BIFD0U. Will there be anything else today?
I will also need a place to stay.
A guesthouse has already been booked for you. Is there anything else I can help you with today?
I also need a train from Bishops Stafford to Cambridge. 
There are 2 trains that meet your criteria. The TR8167 and the TR9693. Would you like me to book one of them for you?
Yes please, for 4 people. How about the TR8167 please. 
Oh! It looks like we've already booked Train TR8167 for your group of 4. Your reference number is H4BIFD0U. Is there anything else I can help you with today?
I also need a hotel booking.
What area would you like to stay in?
I'm looking for a place to stay that is cheap located in the north.
Okay! Would you like to stay at City Centre North B and B, or at Worth House?
I would prefer the centre. 
Okay, there is already a booking for you there. The reservation number is E6UVD9OL.
That's all I need, thanks so much for all of your help! Have a great day!
have a great day too
you too and thanks again
Thank you and have a great day. Goodbye.