U: Hi there. I'd like to find a place to dine in the city centre, preferable with Sri Lankan food. Do you have any recommendations?

S: Sorry, I don't have any restaurants with sri lankan food in the centre. Would you like to try another type of food?

U: Could you try again? Moderately priced, perhaps?

S: Sorry, there was nothing found. Do you want to try a different kind of food?

U: How about modern european food?

S: There are two options for modern european food in centre in the moderate price range.  May I suggest Riverside Brasserie?

U: Does it have good Chardonay there?
S: I'm not sure, but many customers complained about their drinks not being good and being too sour. Would you like to look at some other options?