U: I am looking for Japanese food in the south part of town.

S: I am sorry. There is no japanese restaurant in the south area? Would you like to try another area or food type?

U: Try Mexican, then.

S: Unfortunately, I was not able to locate a Mexican restaurant in the south part of time. Would you like me to search for a different cuisine?

U: I'll take any type of cuisine, then. I just need a reservation for 6 at 13:15 on Saturday.

S: There are Japanese, Italian, Modern European, Portuguese, Indian, and Mexican. Which of these do you prefer?

U: Mexican, please.

S: The Mexican place is not open then, shall I try another place to dine?

U: Yes please. Are you sure there are no Japanese or Mexican places in the same price range open on the south side that day?

S: No I am sorry. But there is a Portuguese restaurant if you are interested.

U: May I pay with a Mastercard?

S: No, payment by credit card is not an option. Do you think this will work for you?

U: Do you know if they serve alcohol at the Portuguese restaurant?
S: Yes, they serve alcoholic beverages at Nando's restaurant, do you want to make a reservation there or do you have more questions?