Hi I am looking for a place to stay that has free parking in the north part of town.
There are several options with your criteria.
The hotel should be in the type of guesthouse and should be in the expensive price range.
There are no guesthouses with those criteria. Would you like to look in a different part of town?
i didn't mention a specific part of town.
I am sorry but there are no accommodations that meet your criteria.  Would you be willing to try a top rated but less expensive hotel?
Ok, how about one in the cheap price range in the north with free parking?
How about the Worth House, it fits those requests and has a 4 star rating.
Sounds good. I'll need rooms for 3 people, for 2 nights.
Okay, what day would you like your stay to begin?
We're arriving on Thursday.
I apologize, i was unable to complete your booking. Is there another day for arrival, or possibly a shorter stay?
Are there any other cheap guesthouses in the north with free parking? My schedule is inflexible I'm afraid.
There is, but booking was unsuccessful at the city centre north b and b as well. 
Is there any cheap guest house available for arrival on Thursday for 2 nights?  I still need free parking.
I am sorry your booking is still unsuccessful. Would you like to book another day or shorter stay?
Are there any guest house available for my requested days?
Sorry, I tried to book a stay for 2 guests earlier. You're staying at the City Centre North B and B, reference number 28UEK6JH!
Great! Now I need a train to go to birmingham new street after 10:15 on Saturday.
There is a train to birmingham new street that leaves at 11:01 on Saturday. Would you like me to book it for you?
Not right now, can you please just give me the time, price, and train ID number?
TR5669 is the one that leaves at 11:01.  The tickets are 60.08 pounds each and the trip is 163 minutes.  Anything else?
Sure, you can book that train now -- just for me, please.
Great it's been booked the reference number is DR5MNOOS
Okay great that is all I needed.
Thank you for calling!