I need a moderately priced restaurant in the south of Cambridge
I have two restaurants in the south. They serve italian or modern european.  Would you like information on either of those?
No, I was hoping to eat some South African food.
Is there anything else I can help you with today?
Sorry, not sure I follow.  Can you recommend a south african food restaurant?  Thanks.  
Unfortunately there are no restaurants that serve South African food but I can look for other types of cuisines if you want.
Modern European will be fine.  Can you reserve a table at one please?
Yes, I will book you a table now.
Thank you. I need it for 4 people at 12:15 on Saturday
I was able to book a table for two at restaurant alimentum located in the south your reference number is 70K7T35N. Is there anything else I can help with? 
No that will be all thank you.
Thank you for contacting us and have a nice day.