U: I'm looking for a train departing from london liverpool street leaving on thursday.

S: There are 10 trains leaving fro Liverpool Street on Thursday. Did you have a departure time in mind?

U: Yes, I don't want to leave for Cambridge until 15:00 at the earliest.

S: Okay, the TR8944 leaves at 15:39 and arrives by 17:07. Would you like me to book tickets for you?

U: Yes, for 6 people.

S: Okay I have booked you and your reference number is WLUOQKEV.

U: Thank you. I also need a hotel in the south.

S: What price range are you interested in?

U: No price range but I do want a 4 start.

S: rosa's bed and breakfast is in the cheap price range

U: How friendly is the staff there?
S: The Rosa's Bed And Breakfast have a friendly staff who are patient and they are also very helpful when you require them.