I need to find a train leaving Cambridge after 12:15.
Okay. What is the destination?
That will be London King's Cross, and I'll be travelling on Tuesday.
TR0315 is the first train out after 12:15. It departs at 13:00 and arrives at King's Cross at 13:51. Would you like a ticket?
Yes, I need 6 of them.
That booking was successful and your reference number is A7PJEHZW.
I also need a hotel. Do not need Free Parking. 
I have about 3 guesthouses and 1 hotel to choose from. Is there an area that you would like to stay in?
I need something in the south area.
I'm sorry there are no guesthouses in the south. Would you like a different area or a hotel instead?
Maybe try one with free parking. 
rosa's bed and breakfast is super cheap, has free parking though, but it is a 4 star. Would you like to book it?
That would be fine. Can you book that for the same group of people for 2 nights starting on sunday. 
Booking was successful. Your reference number is 9VM0WVB8. Will that be all?
Thank you, that will be all. good bye.
I hope you enjoy your stay!