Could you help me find a restaurant that's moderately priced, and services sri lankan cuisine?
I'm sorry, I don't see any moderately priced sri lankan restaurants. Would you like to try another sort of cuisine?
Yes, are there are restaurants with lebanese cuisine?
No, I'm sorry, there are no Sri Lankan restaurants in the moderate or the expensive price range. Can I help you find something else?
Do you have a moderately priced restaurant serving lebanese food?
Yes. Ali baba serves lebanese. May I book a table for you?
yes see if there is booking for 6 people at 11:15 on thursday.
I'm sorry, I was unable to book the restaurant. Would you like to try a different restaurant? 
Yes, is there another restaurant serving lebanese food that you can recommend?
No I am sorry the ali baba is the only one. Another place maybe?
Yes, please try a different restaurant in the same area and price range. 
I was able to book you at the oak bistro. your reference number is 11WH7X3K. Is there anything else I can help you with?
Nope, that should do it! Thanks!
Okay great! Enjoy your lunch.