U: I need a train on friday to arrive by 15:30

S: I have 206 trains that arrive somewhere by 14:30. Where are you heading to?

U: I am headed to Cambridge.

S: Where are you coming to visit us from?

U: I'll be coming from Leicester.

S: Would you like me to book it for you ?

U: I would just like the id for the train that fits that billing.

S: TR4625 arrives in Cambridge Friday by 14:54 on Friday. Would you like to book a seat?

U: No, thanks just needed the ID. Can you please look for a restaurant for me in the centre? In the moderate price range preferably.

S: There are 21 restaurants matching your query. I recommend cotto.

U: Does it serve Turkish food? If so, please book that for 1 at 20:30 on the same day. If that doesn't work then Monday. Can I have the reference number?

S: It does not, but there are two restaurants in the centre that do serve turkish food. Do you prefer efes restaurant or anatolia?

U: Does either restaurant have a nice location?
S: Anatolia is said to be located in a beautiful area, while Efes Restaurant is located near many cool things, but the strip mall nearby is undesirable to some.