I need help finding a cheap restaurant
What type of cuisine would you like?
I'm interested in European cuisine. 
We have the river bar steakhouse and grill in the centre area, would you like more information?
Can you book me a table there for 7 on Friday at 19:45?
Yes.  Your booking was successful.  The table will be reserved for 15 minutes.  Your reference number is ODB8T8HO.  Is there anything else I can help with?
Yes can you help me find a train as well?
Sure! Where would you like to come from? What day of the week and what time?
I would like to leave in Saturday.
We have several options!  Where would you like to go?
I would like to go to Ely please.
Do you have a time you need to leave or arrive by?
The train should arrive by 13:00 and should depart from cambridge.
Your best best is TR0721, leaving Cambridge at 11:50 and arriving Ely at 12:07. The trains only run every 2 hours on Saturdays.
Okay. Can you go ahead and book that train for 7 people please? And give me the reference number.
Booking was successful, the total fee is 24.64 GBP payable at the station .Reference number is : OKXUNQ4W
Thanks for the help, goodbye!
You are welcome, enjoy your stay!