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: Thanks, but I believe we are repeating ourselves. The hotel and attraction are all I need at this time. Goodbye. Sentence2: They have free wifi and the rating of the hotel. Sentence3: There are 11 museums in the centre. Sentence4: I'm looking for Hotels in the center area of town. Sentence5: Do you want hotel reservations? Sentence6: The Gonville Hotel is rated 3 stars. Can I book you a room? Sentence7: They have a 3 Star rating Sentence8: I have the Gonville Hotel with free parking in the center that is in the expensive price range. Sentence9: The Gonville Hotel is good. Can I book a room? Sentence10: Great. I have 3 options available for you. Is there a price range or star rating you prefer? Sentence11: Yes I need to know how many people wil be staying and for how long and from when. Sentence12: I AM also looking for a place to stay Sentence13: The Gonville hotel is nice. Would you like me to reserve you any rooms? Sentence14: What is their star rating? Sentence15: Does it have free wifi and what is the rating of the hotel? Sentence16: That's great, could you pick me one and provide the entrance fee, phone number, and address? Sentence17: Are there any museums close to the hotel? Sentence18: broughton house gallery is free entrance. The address is 98 king street and phone is 01223314960. Is there anything else? Sentence19: How many stars is the hotel rated? Sentence20: I don't care, but I'd like free parking. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User