U: I am looking for a train arriving by 9:45 on Tuesday.

S: May I get your departure and destination information please?

U: I am going from Cambridge to Leicester.

S: TR2863 departs from Cambridge at 07:21 and arrive in Leicester by 09:06. Would you like to book this train?

U: Maybe... how much does it cost?

S: It costs 37.80 pounds per ticket.

U: I'm sorry, we have that mixed up. I need to depart from leicester and go to cambridge. Do you have a train that arrives by 09:45 in cambridge?

S: TR6954 departs from Leicester at 07:09 and arrives in Cambridge at 08:54. Would you like to book this train?

U: Can you verify the cost for train TR6954 for me?

S: The cost for this particular train is 37.80 pounds per ticket. Would you like assistance booking tickets for this train?

U: Yes I would like help with booking the train and I will also need to book a hotel.

S: Your booking reference is NT43PSC0.  Now, if you let me know what type of hotel you are interested in, I can help you with that as well.

U: Can you help me find a 5-star room somewhere that offers free parking and wifi?

S: There don't seem to be any 5-star lodgings in the city. Would you like to try searching for 4 stars instead?

U: Yes, 4 stars would be fine.

S: The acorn guest house is a 4 star hotel located in the north side. Would you like to make reservations?

U: Do you know how centrally located and accessible the Acorn Guest House is?
S: Acorn Guesthouse is not located in the central part of town, which has turned some past customers off. However, because of its location, it is also quiet and feels relatively safe.