U: I am trying to book a train.

S: What an excellent way to see the beautiful countryside. What other information can you give me?

U: I want to travel from Cambridge to London Liverpool Street on Thursday after 09:45.

S: I see that there are 8 trains available. What about TR2715 that leaves at 09:59?

U: I would like price, please

S: Certainly. Any ticket on that route is going to cost 16.60 pounds.

U: I'm also looking for a hotel to stay that has a star of 0 in the expensive price range.

S: There are no hotels in Cambridge that are expensive with a 0 star rating. Would you like to change either the price range or the star rating?

U: There's nothing in the north?

S: I do have City Centre North B and B in the north. It's in the cheap price range with 0 stars. Might that work for you?

U: only if they have a clean bathroom. what are their bathroom ratings?
S: According to the reviews I have on hand for that location, the bathroom's are as clean as any patrons have ever seen.  Sound good enough for you?