U: I want an expensive restaurant located in the centre.

S: i have booked you the indian serving restaurant called the golden curry

U: sorry but i wanted the americas food.

S: I'm sorry, I don't have any restaurants serving american food in the centre. Would you like to try another type?

U: Hmmm, okay, I'm craving Thai food so find me a restaurant that serves that

S: I have one listing for bangkok city does that sound good to you?

U: How large are the portion sizes?
S: The portion sizes at the Bangkok City are generally considered to be small and overpriced for what's provided.