user_turns: <SILENCE> south part of town north_american <SILENCE> are there any restaurants in the south part of town that are expensive how about indian food <SILENCE> can i have their phone number thank you good bye
system_turns: Hello , welcome to the Cambridge restaurant system . You can ask for restaurants by area , price range or food type . How may I help you ? What kind of food would you like? api_call R_cuisine south expensive Sorry there is no expensive restaurant in the north of town serving north_american food Sorry there is no expensive restaurant in the south of town serving north_american food api_call indian south expensive taj_tandoori is a nice restaurant in the south of town serving indian food The phone number of taj_tandoori is taj_tandoori_phone  you are welcome