U: Hello, do any trains run on Saturday?

S: Yes, we have many trains that operate on Saturday. Would you like to book one?

U: I'm looking for the train which arrives in Cambridge from Leicester. It should arrive by 19:30

S: Is there a time you would like to leave by?

U: No I don't have a leave time preference. Just not too early if I don't have too.

S: How about 9:09 will that work for you?

U: That might be too early.

S: What is the earliest you would be like to leave by?

U: I'll take the one that leaves at 9:09.  It's fine.  What is the travel time on that train?

S: The travel time on train TR8070 is 105 minutes.  Would you like me to book this for you?

U: No but I am also looking for a place to stay in a moderate price range.

S: There are several in the moderate price range. Do you have a certain area in mind?

U: No, but I would like a 4 star rating.

S: Will you be needing parking and/or internet?

U: Parking and internet are not of interest to me really.

S: The avalon meets your requirements. Would you like reservations?

U: I need a really super clean bathroom; do they have that?
S: The Avalon is known for having really clean bathrooms. Only one person complained about it being a bit dirty.