Yes, I am looking for a place to stay. I would prefer to stay in the North at a 3 Star location.
I show 2 option, both in the moderate price range. Do you need parking or internet?
Neither of those matter, but I would like it to be a guesthouse.  Do one of those match?
Alpha-Milton Guest House is 3 stars with no internet or parking. Would you like to book a room there?
I'd like to book it for 4 people and 2 nights starting Monday. I need the reference number as well. 
Fantastic, your reference number is T2AUGQ7S. Is there anything else you need today?
Yes, I need a train to get me to Cambridge on Monday.
Where did you want to get on the train?
I will be departing from peterborough. 
Okay, there are lots of choices. What time of day would you like to travel?
I need to get there by 20:45.
TR7940 will get you there by 20:38, would you like me to book it you some tickets?
No, I don't need assistance with the booking. Can you tell me the cost of the ticket though?
The cost per ticket is 16.50 pounds. Can I assist you with anything more? 
No, that's everything. Thank you.
You're welcome! I hope that you enjoy your stay in Cambridge.  Have a nice day.  Bye.