U: I need a train from london liverpool street.

S: May I ask where you are travelling to? And what day?

U: Cambridge, on Wednesday.

S: Is there a certain time you would like to arrive in cambridge?

U: No. I just need to leave after 14:00.

S: I have train TR7978 leaving at 15:39 and arriving at 17:07.  Would you like to book that?

U: Not right now, thank you.  I'm also looking for a place to dine.  I would like an expensive restaurant in the centre of town.

S: I have 33 restaurants available. Do you have a type of food preference?

U: Do you have anything that serves modern european food?

S: there is one in that area called darrys cookhouse and wine shop

U: Do they have large portions of food?
S: Most of the customers say that the portions are absolutely huge, only one person complained and said they were small.