I'm looking for a train that goes to Cambridge on Saturday
Would you like to leave or arrive by a certain time?
I would like to leave after 21:30.
Where will you be departing from?
I will be departing from broxbourne. 
We have 3 options that meet your criteria. All depart within an hour of each other starting at 21:32. Would you like me to book one of them for you?
Yes, whichever train has seats available for 7 people.
Your booking was successful, the total fee is 100.24 GBP payable at the station.  The train departs at 21:32. Your reference# is UZFW2TAQ. Is there anything else?
Yes, i am looking to book a room at the alexander bed and breakfast. 
I found Alexander bed and breakfast . Do you want to make a reservation?
Yes bookit for the same group of people 4 nights.
What day will you be arriving?
Let's try for saturday, but if that is not available then tuesday would be fine
I was able to book you for Saturday.
thanks can I get a reference number please? 
Your reference number is XVE54KKH. Is there anything else I can do for you?
That will be all, thanks again.
You are welcome enjoy