user_turns: <SILENCE> i would like a cheap restaurant and it should <SILENCE> i would like a cheap restaurant it should serve ger <SILENCE> how about european food <SILENCE> what type of food okay what yes okay how about portuguese food <SILENCE> may i have the address and phone number thank you may i have the phone number perfect 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 ? api_call R_cuisine R_location cheap nandos_city_centre is in the cheap price range What part of town do you have in mind? I'm sorry but there is no restaurant serving german food api_call german R_location cheap nandos_city_centre is in the cheap price range nandos_city_centre serves portuguese food I'm sorry but there is no restaurant serving cheap european food You are looking for a european restaurant right? Let me confirm , You are looking for a restaurant in the cheap price range right? I'm sorry but there is no restaurant serving cheap european food api_call portuguese R_location cheap nandos_city_centre serves portuguese food in the cheap price range Sure , nandos_city_centre is on nandos_city_centre_address nandos_city_centre is a great restaurant The phone number of nandos_city_centre is nandos_city_centre_phone nandos serves portuguese food in the cheap price range nandos is a great restaurant  you are welcome