I am looking for a guesthouse to stay at in the moderate price range.
How about the a and b guest house? 
Does it have free parking?
No, it does not offer that. Would you like something that does?
Yes.  I need free parking, and I prefer the southern part of town. 
ok, I have a couple that meet that criteria. Would you like 3 or 4 stars?
I have no preferences. You can just pick one. I'd like it for 7 people for 5 nights starting from saturday. 
This is unavailable would you like to book a shorter stay or a different day?
How about 3 nights for the same day and number of people?
Great! You're booked for 3 nights at Bridge Guest House with reference number AH7L4RXZ. May I help with anything else?
Yes, I need a train out of Peterborough into Cambridge, please. 
When do you need that train?
I need it for Saturday and I want to arrive by 18:15.
TR4494 will depart at 17:19 on saturday and arrive by 18:09. Would you like me to book it for you?
Yes please. Can you book 7 tickets on that train? I'd like a reference number if possible.
Booking was successful, the total fee is 92.4 GBP payable at the station. Reference number is : 8JPQ3AQT.
Great!  You have helped me tremendously.  I don't need anything else.  Thank you!
Let us know if you need anything else. Good bye.