I need to book a train for 18:45 that leaves Cambridge.
What is your final destination? 
Norwich is my final destination. 
Do you have a day in mind?
I will be traveling on Friday. 
I have a train that leaves on Friday at 19:36 and arrives in norwich at 20:55. Would you like me to book it for you?
Actually, I wasn't very clear before. I apologize. I need to arrive in Cambridge by 18:45. 
TR4990 departs Norwich at 17:16 and arrives in Cambridge at 18:35. Will that work for you?
Yes, I think it will.  How long is the trip and how much will it cost me?
How many tickets will you need?
just the one
Okay, you're booked with reference number 3LOQWXPK. Trip duration is 79 minutes, and the total fee is 17.6 GBP payable at the station. May I help with anything else?
Yes, I'm also looking for a place to dine. Should be in the west and preferably in the expensive range.
I can look that up for you.  Do you desire a particular type of restaurant?
Steakhouse please. 
Unfortunately there are no steakhouses any where in the city at any price point.  Do you have another type of food to search for?
Yes, could you see if there is one that serves british food instead?
I would recommend Travellers Rest.  It is on the west side and it is expensive.
Could I please have the address and postal code?
The zip code is cb30df, while the address is Huntingdon Road City Centre. Is there anything else I can help you with?
No that was it thank you very much.
You're welcome, thanks for using Cambridge TownInfo centre, have a great day!
Thanks, you to.  Good bye.
Thank you for calling Cambridge TownInfo Centre. Have a good day.