I'm looking for a train on Tuesday to arrive in Cambridge by 19:00, can you help me please?
Sure! Where will you be departing from?
I will be leaving from Cambridge.
I'm sorry,I'm confused. You are leaving from Cambridge to go to Cambridge?
No.  I am leaving from Cambridge to go to Broxbourne. 
Train TR0189 arrives at 18:01. Should I reserve tickets for that one?
Sure please make a booking for 4 people.
Booking was successful, the total fee is 71.59 GBP payable at the station .
Reference number is : V7H3P3G7. anything else?
Yes, I am looking for a 2-star hotel in the west part of town.
There are no 2 star hotels in the west part of town. Would you like to expand the search to 2 star hotels in other parts of the city?  
Will you check to see if there are any in the north?
I have the lovell lodge it is located in the north and is moderately priced with 2 stars.  Would you like to reservations there?
sure, for the same group of people on sunday
Ok and I need a reference number please