Hi! I'm looking for a train to Norwich on Saturday.
What is your departure site and time?
From Cambridge and I want to arrive by 20:30.
I have a train that would leave at 18:36 and arrive by 19:55.  It's 79 minutes long and costs 14.08 pounds.  Would you like me to book it?
Yes please, book it for 7 people.
All booked and ready to go! The reference number is RJVNE0PT.
I am also looking for a place to stay. Can you find a 1 star hotel for me that is a guesthouse?
Unfortunately, there are no guesthouses that meet that criteria. In the area, there are 24 guesthouses, some of them cheap, some expensive. Can you narrow down your choices?
If there are no 1 star guesthouses, please find me the cheapest one that includes free wifi.
Alexander bed and breakfast is a 4 star cheap guesthouse with free interenet and parking located in the centre. Does that work for you?
Yes Alexander bed and breakfast that has a star of 4 would be great. 
Sure, I can book that for you. How many people will be staying and for how long also arriving what day?
There will be 7 people staying for 2 nights beginning on Thursday.
My attempt to book your party was unsuccessful. Would you like to try a different length of stay, or a different hotel?
Would 1 night work instead? If it does could I get the reference number please?
Yes, 1 night will work. I've booked the hotel for you, and your reference number is FIINUE5N. What else can I help you with? 
That will be all. Thank you.
Wonderful. Enjoy your stay in Cambridge!