I'm looking for a restaurant in the center, but on the cheaper price range, can you help me?
There are 15 restaurants in the city centre that are in the cheap price range. What type of cuisine would you prefer?
I will prefer restaurant that serve Chinese food.
I have three. Shall I try to book one?
Actually, no booking is necessary. But, can you suggest one and provide me the address. Thanks. 
I recommend the golden house. The address is 12 Lensfield Road City Centre.
Great thank you, I also need a train to arrive by 20:15 and traveling on monday.
I can help you with that. Where are you leaving from and going to?
I'm leaving from Norwich and heading for Cambridge.
Trains leave hourly from 5:16 am till 18:16 pm.  The 18:16 pm train arrives at 19:35.  The fare is 17.60.  What time would you like to leave?
That doesn't matter. The 18:16 will do. Book it for 4.
Your ticket booking was successful and the total fee is 70.4 GBP payable at the station . Your reference number is : 72SA1578. Is there anything else I can help you with?
Thank you so much for your help, that's all I need today.
Great! Enjoy your visit and have a good one.