I would like a train going to stansted airport.
From where will you be departing?
I am departing cambridge tuesday 
I have several trains available.  What is your preferred time of departure and arrival?
I would like to leave after 20:15.
I have one leaving at 20:40 and arriving by 21:08. Only 10.10 pounds. Would you like to book? 
Thank you. can also provide the train ID? 
TR8238. Would you like to book it?
No thanks can you help me find an expensive restaurant in the centre? 
There are 33 expensive restaurants in the centre. Is there a type of food you prefer? 
I'm up for an adventure, can you pick a good one for me?
Of course. I would recommend the Cambridge Chop House. It serves British food. Would you like to book a table?
No but I would like the postcode and the phone number.
Phone number is 01223359506 and the postcode is cb21sj. Is there anything else? 
That is all, thank you very much.
I am glad I can help and enjoy !