I'm looking for a nightclub in downtown Cambridge.
I have several, is there a price you would like to keep entrance fee under?
I don't really care. Can you suggest a place? And give me a postcode for the one you suggest please. 
Soul Tree Nightclub is nice and has a 4 pounds entrance fee. The postcode is cb23qf. Can I help with anything else?
I'm also looking for a train. I need to depart from cambridge and arrive by 19:15.
There are many trains that fit your criteria. Is there a destination to narrow the search?
I would like to go to Kings Lynn on Monday. 
There are many trains that day. I Have one that that gets in at 17:58, would you like me to book it?
That works for me. Book it for 2 people and I need the reference number.
Okay, I have booked your train ticket from Cambridge to Kings Lynn. Your reference number is RX3523989.
That's everything. Thank you.
You are very welcome and have a good night.