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: Looking for a place to eat in the city center. Sentence2: I am looking for a moderately priced place to eat, I am also looking to book a room in the bridge guest house hotel. Sentence3: Yes, free parking and free wifi! Sentence4: The Bridge Guest House is a 3 star lodging. Sentence5: That was all the questions I had. Thank you very much for helping me. Sentence6: Which dates will you be staying at the Bridge Guest Room house? Sentence7: I'm happy I could help you today. Have a wonderful day! Sentence8: Does it provide free parking? Sentence9: The hotel is in the south area. Sentence10: I'd like to have some Chinese food. Sentence11: There are many options to choose from. Do you have a type of food in mind? Sentence12: OK, 2 questions. 1 - What are the moderately priced restaurants in the center of town; and 2 - how many stars does the Bridge Guest House have? Thanks! Sentence13: Before I commit I have a few questions. What area is the hotel located in? Sentence14: That narrows down the restaurant choices to 10. Is there a price range you would like to stay in? Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System