System: 'Thank you for calling the Cambridge Information system. Your call will be recorded for research purposes. You may ask for information about a place to eat, such as a restaurant, a pub, or a cafe. How may I help you?'
User: 'sil'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'greek restaurant the city centre'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'greek restaurant in the city centre'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'greek restaurant in the city'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'greek restaurant in the city area'
System: 'There is no restaurant in the Chesterton area and serving greek food.'
User: 'sil'
System: 'Let me confirm. You are looking for a venue in the Chesterton area.'
User: 'sil'
System: 'Let me confirm. You are looking for a venue in the Chesterton area.'
User: 'thank you goodbye'
Question: 'Did the user mention price range they are looking for?'
