I'd like to get to Cambridge by train, but I'm afraid I need to travel on Sunday. Will that be possible?
From where are you departing?
I am leaving from Broxbourne. 
There are 19 trains running from Broxbourne to Cambridge on Sunday. Is there a particular time when you need to travel? 
Can you get me one that'll arrive by 18:30?
I have just the train for you!  TR9331 will arrive in Cambridge at 17:32, which is within your desired timeframe.  Would you like me to book that for you?
Yes, please.  I need 2 tickets.
I was able to get 2 tickets. Your total is 28.64 GBP and will be payable at the station. Your reference number is 8UDKCNBU. 
Perfect, thank you! I'm also looking for a guesthouse in the area, preferably in the North. Do you have an option that has free parking?
We have many in that area with free parking. Might I suggest the acorn guest house?
Sure. Please book for 4 nights starting on the same day.
I will go ahead and book that for you.
Thank you so much.  Can I get the reference number also, please?
I'm sorry, how many people would you like to book the room for?
2 people, 4 nights, for sunday.
Booking was successful. Your reference number is : I78WB6O9.  Can I help you with anything else today?
No. Thanks a bunch! Goodbye
You're welcome, it was a pleasure serving you!