U: Hello, I'm trying to find a train from Cambridge that arrives by 20:30.

S: Okay, what is your destination?

U: My destination is stansted airport.

S: Great, what day would you like your train for? Also, would you like to leave by a certain time?

U: I need the train for Monday. Departure time doesn't matter, as long as I arrive by 20:30.

S: No problem , the TR6539 train should arrive by 20:08, would you like to make a booking.

U: No, can you find a guesthouse for me with a 4 star rating?

S: How about TR6539 on Monday? It arrives by 20:08.

U: That would be great. What is the total travel time of the train ride?

S: This trip is about 28 minutes. Now we can get to finding you a guesthouse. What area would you like me to look for?

U: East please. Something moderately priced?

S: There are three moderately priced guesthouses in the east. I would recommend either Carolina Bed and Breakfast or Warkworth House. Would you like me to book one of them?

U: Which place does have more comfortable beds?
S: Warkworth house very large and extremely comfortable rooms which come with a great view of nearby room..