Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Positive Example 1 -
Input: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Output: Answer: (A) User

Positive Example 2 -
Input: Sentence1: Guten Tag, I am staying overnight in Cambridge and need a place to sleep. I need free parking and internet. Sentence2: I have 4 different options for you. I have two cheaper guesthouses and two expensive hotels. Do you have a preference? Sentence3: No, but I'd really like to be on the south end of the city. Do any of those fit the bill? Sentence4: Sure. Does price matter? We can narrow it down and find exactly what you need. Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (B) System

Negative Example 1 -
Input: Sentence1: I am looking for a hotel named alyesbray lodge guest house. Sentence2: i have their info, what would you like to know? Sentence3: I would like to book a reservation for it. Can you help me with that? Sentence4: I sure can. First, I will need to know when you want your stay to begin and how many days you'll be staying. Also, how many people will be staying? Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (A) User

Negative Example 2 -
Input: Sentence1: Hi there! Can you give me some info on Cityroomz?. Sentence2: Cityroomz is located at Sleeperz Hotel, Station Road in the Centre area. It is a moderatley priced hotel with a 0 star rating. Would you like to book a room? Sentence3: Yes please. I need it for 7 people for 3 nights starting on tuesday. Sentence4: How many days would you like to book it for? Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (A) User

Now complete the following example -
Input: Sentence1: Thank you very much, you too. Sentence2: Your are very welcome! Enjoy your stay here. Sentence3: How about italian food? Sentence4: Yes, I also need a place to stay, free parking is not required, I would prefer a 0 star rating. Sentence5: That won't be necessary. I need the price range and postcode. Sentence6: I'm sorry I have no results for a scottish restaurant in the centre area. Is there another type of cuisine you'd like to try for? Sentence7: Are there any good Scottish restaurants in the centre? Sentence8: My favorite is Stazione. It's an expensive place located in postcode cb23nj. Their phone number is 01223352607. Can I help you with anything else today? Sentence9: I have several in the area, is there a price range you prefer? Sentence10: Cityroomz is a 0 star hotel in the centre with no parking available. It is moderately priced. Would you like me to make a reservation for you? Sentence11: Thanks for all your help. Goodbye! Sentence12: Thank you for contacting Cambridge TownInfo Centre, have a great day! Sentence13: Cityroomz is a moderate priced offering and the postcode is cb12tz. Is there anything else I can help you with today? Sentence14: It doesn't matter. I need to know what the price range is though, postcode and phone number too please Sentence15: You're welcome, have a nice day. Sentence16: No, everything I asked of you has been met. Thank you. Sentence17: Is this hotel in the same area as the restaurant? Sentence18: Yes they are both located in the centre. Would you like a reservation? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System