I am looking for a train for Tuesday going to Birmingham New Street.
Where are you departing from and what day are you traveling? This was I can narrow my search to better assist you.
Cambridge and I would like to leave Tuesday
Does it matter what time you leave or arrive?
I want it to arrive by 10:45. 
Train TR2164 leaves at 8:01 and arrives at birmingham new street at 10:44. Would you like me to book you seat?
Yes please book 5 seats.
Ok I have for you 5 seats on TR2164. The total fee is 375.5 GBP payable at the station .
Reference number is : 3SKORQ4K. Anything else I can assist with?
Yes I'd like to find a guesthouse with free parking, preferably in the north.
I have 9 locations that meet your criteria. Do you have a preference regarding price range of star ratings?
Yes, I prefer a guesthouse between a three and four star rating.
I have 7 guesthouses that are 4-star rated and offer free wifi and parking. 6 are moderately priced and 1 is cheap. Do you have a preference? 
Any of those will be fine. Please send the reference number and location. 
Okay, how long would you like to stay?
I'd like to check in on Friday for 4 nights. Book it for 5 people.
I was able to successfully book you at the asbury lodge guesthouse.  The reference number is 6LQ4AF7B., can I assist with anything else?
That is all I need, thank you so much.
Have a great trip!