U: I'm looking for a train that leaves on friday

S: I have several trains leaving on that day.  Where are leaving from and your destination?

U: I am traveling from Kings Lynn to Cambridge.

S: Okay, we have 19 trains leaving on friday.  Do you have any times you wish to leave and arrive by?

U: Arrive by 10:45.

S: I have the TR1612 that leaves friday at 9:11 and will arrive at 9:58. Would you like me to book that?

U: Yes please book for 1 person and provide me with the reference number.

S: I booked it for you. Your reference number is GWME416R. Is here anything else I can help you with today?

U: Yes, I am also looking for a 3 star guesthouse that's moderately priced and has wifi.

S: You have 3 choices: one in the south, one in the north, and one in the west. Would you like to book a room at one of these?

U: What's the name of the one in the south?

S: The bridge guest house. Is there anything else I can help you with?

U: Do you know if the Bridge provides Wi-Fi on the premises?
S: Yes, free Wifi is provided at the Bridge and past guests were satisfied with the performance on the wifi.