Hi, I'd like to book a train that leaves after 21:30 on Friday. 
Sure, where are you departing from and going to?
I'll be leaving Cambridge and traveling to Birmingham New Street.
TR8202 is leaving cambridge at 22:01 would that work for you? 
Yes could you provide me with the travel time and arrival time as well please?
The travel time for the TR8202 is 163 minutes. The arrival time is 24:44. Is there anything else I can help you with?
I'm also looking for a place to dine. The restaurant should serve gastropub food.
There are 4 restaurants that serve gastropub cuisine. Do you have a location and/or price preference? 
Yes can we try the south?
I am sorry there are none in the South. There are 3 in the centre and 1 in the east. Will one of those area work for you?
How about centre?
Yes, there are 3! Price ranges are moderate and expensive. Does one of those suit you?
Moderate price range please. 
Perfect, there's a place called The cow pizza kitchen and bar, would you like me to book it? 
Please, for 7 people at 13:00 on the same day.
Booking was successful. The table will be reserved for 15 minutes.
Reference number is : BGGCS2UB
Thank you so much. That's all I need today. Have a great day! Bye. 
You're very welcome! Enjoy your trip!