U: I need a train that leaves london kings cross on friday

S: And what is your destination station?

U: I need to arrive at Cambridge. I want the train to leave after 17:30.

S: There are 3 trains leaving after 17:30 on Friday, by what time would you like to arrive in Cambridge?

U: I need to arrive by 5pm.

S: That's physically impossible. You want to leave after 17:30 which is 5:30 pm and arrive at 5 pm? Try that again please.

U: Can I get the train ID and arrival time for the first train after 17:30 on Friday, going from Kings Cross to Cambridge?

S: the TR9139 leaves at 19:17 and arrives by 20:08

U: I am also looking for de luca cucina and bar, can you help me locate it?

S: Gladly. It's located in the centre and it serves modern European food. Would you like me to make a reservation for you?

U: Yes please, can I get a reservation for Friday at 21:00 for 3 people?

S: Great choice! Your booking was successful. Here is your reference number 8W4EZQ1E. Anything else I can help you with?

U: Could you tell me whether De Luca Cucina and Bar has a lot of options on the menu for nonalcoholic drinks?
S: Yes, De Luca Cucina and Bar has a variety of non-alcoholic options to satisfy the non-drinkers. Can I help you with anything else?