Will you help me find a portuguese restaurant in the east please?
I'm sorry, I couldn't find any Portuguese restaurants in the east. Shall we look in a different part of the city instead? 
Are there any that are in the expensive price range?
I'm sorry. There are no expensive Portuguese restaurants in the city.  There is, however, a cheap Portuguese restaurant in the south and another in the centre.  Do either of those interest you?
How about a restaurant that serves British food then?
Graffiti is an expensive British restaurant on the west side. It's a fantastic place. Would you like to book a table there?
Yeah. That sounds good. Can you book it for 4 people at 19:30 on wednesday?
Booked! Your table will be reserved for 15 minutes. Reference number: NMC7VCAK.

Great!  I am also looking for information about a train. Can you help me with that?
Yes I can what time will you be departing and from what location?
I would like to go from Cambridge to Ely on Thursday. 
Ok, the first train leaves at 05:50 and every two hours after from there, the irde takes 17 minutes and the cost is 4.40 pounds.
That's all I need.
Would you like me to reserve your train tickets?
Yes please. I'll need a departure time, travel time, and price. Thank you. 
The TR1923 departs form Cambridge at 09:50 and arrives in Ely at 10:07. The travel time is 17 minutes, and the cost is 4.40 pounds. How does that sound?
That sounds perfect, thank you.
Great! Can I assist you with anything else today?
No, that is all I need today, thank you.
Let me know if you need more help, bye.