U: I am looking for a hotel in Cambridge.

S: There are over 30 places of lodging in the city. Would you prefer a certain part of town, or a particular type of lodging such as a guest house or hotel?

U: Just a 4 star guesthouse that has free parking please.

S: What area would you like the guesthouse to be in?

U: Do not care what area,it will be for 2 people and for 4 nights starting Wednesday.

S: Would you like me to book you at the acorn guest house? It has free parking and it's a 4-star hotel.

U: Can we book it for 2 people for 4 nights?

S: I am sorry I couldn't get that booked for you perhaps another day or a shorter day possibly?

U: Could you try it for one night only?

S: Yes booking is available for one night,would you like me to place it?

U: Yes please, and I'll need the reference number.

S: Ok I have made that reservation for you the reference number is OXWO0RWD.

U: I am also looking for an expensive mediterranean restaurant in the west.

S: I'm sorry there are no matches for what you are looking for. Would you like something else?

U: Yes, how about a restaurant that serves Indian food?

S: There are 5 Expensive Indian restaurants in the west. I recommend Cocum. Would you like me to make a reservation?

U: Would Cocum have a delicious naan dish available?
S: While the Cocum gets high marks for their food, I don't see any mention of naan, specifically. Would you like me to see what else I can find out?