I need to find a guesthouse with a moderate price range. Any places to stay?
We have many hotels that fit your needs, is there a specific area you're looking at?
something that has free wifi
Acorn guest house fits your needs. Would you like me to book your stay?
Do they have free parking? What area is it located?
It's in the north area and they do have parking. 
Excellent. I also need a train to ely. 
Are you sure you don't need me to book your hotel for you?
Can you help with transit information?  I need to go to ely by train on Sunday and need to arrive by 09:00 departing cambridge.
We have TR2475 that leaves cambridge at 07:50 and arrives ely by 08:07.  Will that work for you?
Yes, that sounds perfect.  Can you purchase 7 tickets for me please?
That has been booked. Reference number is : FSUGM4NQ.
Thanks, that's all i need!
No problem. Good bye!