I would like a train that leaves from stansted airport after 16:15 
What day will you be traveling, and where will you be heading to?
I will be traveling on monday and need to go to cambridge 
There's a train leaving stansted airport for cambridge every hour on Monday, by what time would you like to arrive?
I don't care. Give me the earliest one leaving after 16:15.
The earliest train is TR5365 that leaves the airport at 16:24 and arrive in Cambridge at 16:52. Do you need a ticket?
Yes please thank you. Can you also assist to find me a restaurant where i can dine in the Center. My preference is Modern European food.
How many tickets do you need me to book for the train? 
I actually don't need a ticket right now.  Could you please tell me the price and travel time though?
Absolutely. The TR5365 costs 10.10 pounds and has a travel time of 28 minutes. What else can I do for you?
I also need a place to eat.
What are would you like to eat?
I would like modern european food and in should be located in the centre of town. 
There are 8 results for European restaurants in the centre area, would you prefer an expensive, moderate or cheap price range?
I'd like a cheap one, I don't want to spend too much on food, I want to bring back as many knick-knacks as possible. 
The river bar steakhouse and grill meets all your needs. Do you want me to book? If yes, for how many, what day and what time?
Please get me their postcode instead
Yes, the postcode is cb58aq. 
Thank you, that will be all.
You're welcome, have a great day.