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: I've found plenty of places with free wi-fi. Is there a certain area you're looking for? Or a certain price range? Sentence2: It doesn't have to be in the moderate price range as long as it is a 3 star hotel with free parking. Please suggest one for me. Sentence3: I'm looking for a hotel in the west with a moderate price range. Sentence4: I found 5 hotels with free wifi and free parking. Is there a particular area or price range you prefer? Sentence5: Your booking was successful and the Reference number is IYGOHWCR . Is there anything else I can help you with today? Sentence6: Yes, I'd like to book there for 3 people for 4 nights starting Thursday and I would like a reference number. Sentence7: Yes. Please look for any hotels in the same price range Sentence8: I have found no places in the west in the moderate price range with 3 stars. Do you have a different area or price range you would like? Sentence9: It should have a star of 3 and include free parking. Sentence10: There is no availability at the Gonville Hotel for those dates. Would you like me to find another hotel? Sentence11: I actually found the Hobsons House which is a moderately priced 3 star guesthouse with free parking in the west part of town. Would it be okay? Sentence12: The gonville hotel is an 3 star, expensive hotel in the centre of town that has free internet and free parking. Would you like me to book it for you? Sentence13: You are welcome. Enjoy your stay. Sentence14: Thank you so much for your help. Sentence15: Yes, that would be fine. The Hobsons House sounds good. Sentence16: I am looking for a place to stay with free wifi. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System