U: I am planning a trip in Cambridge

S: Excellent! What would you like to know?

U: I need a train that  will leave monday ggo to Cambridge at 12:00

S: Where will you be departing from?

U: I will be leaving London Liverpool Street.

S: The closest thing I have to your departure time is the TR6226 which leaves at 13:39.

U: Okay. I also need to find a guesthouse to stay in the expensive price range.

S: I have 9 guesthouses that fall in the inexpensive category. What part of town do you prefer?

U: I prefer an expensive hotel in the north please

S: I don't have any in that area, another perhaps?

U: How about one in the moderate price range then.

S: There are 9 places available. Do you have a preference in rating?

U: I prefer a four star hotel, please. And can you tell me whether one has free parking?

S: How does acorn guesthouse sound?  It is in the north and moderately priced.

U: Does the acorn guesthouse have clean bathrooms?
S: I see some mixed reviews on the bathrooms with one guest saying they were impressed with the clean bathrooms and another saying it wasn't clean when they got there but they fixed it right away. Would you like to know more about the Acorn or check out a few other places?