I am hoping you can help me find a train departing from Cambridge on Saturday.
There are over 200 trains available, do you have a specific destination in mind or a time you'd like to leave by?
I would like to leave on saturday around 13:15 going to london liverpool street.
There are 6 trains that meet your requirements, the closest in time being the TR4466. It leaves at 13:59. Would you like to book a ticket?
Yes, can you book spots on that for 5 people and give me the reference number please?
Sure thing! You are booked with reference number 8V36RBY3. The total is 66.39 payable at the station. 
Thanks. I'm also looking for a restaurant in the centre that serves european food.
I have many. What price range would you prefer?
I don't have one, could you recommend me a good place?
I would recommend Galleria, they have excellent food. Would you like me to book a table?
Maybe. What is the price range?
The galleria is a moderate priced restaurant. Would you like me to make a booking for you today?
No, I'm sure they'll have tables if I just walk in. Can you give me their address and postcode?
Their address is 33 Bridge Street and their postcode is cb21uw. Is there anything else I can help you with?
No thanks. I need to go. Have a good day. Bye. 
It was a pleasure helping you today. Have a great trip!