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: What time would you like to leave? Sentence2: Could you just get me that phone number for Byard Art Museum? I forgot to ask you earlier. Sentence3: I can help with that! What do you want to know? Sentence4: Are you interested in a particular type of attraction? Maybe a museum? Sentence5: it is okay. the phone number is 01223464646 Sentence6: I am sorry the earliest departure time is 17:40 Sentence7: I'm sorry, I forgot that as long as I leave after 17:15 all will be fine. I need to get to cambridge. Sentence8: Would you like me to book your tickets? Sentence9: Great I also need a train leaving birmingham new street on sunday Sentence10: Sure a museum sounds great. Sentence11: Can I just have the price, train ID, and arrival time, please. Sentence12: No, that will be all. Thank you! Sentence13: I am looking for information in Cambridge Sentence14: You're very welcome! Sentence15: For 60.08 pounds you can leave Birmingham new street at 17:40 and arrive in Cambridge by 20:23 on train TR5797. Would you like to book this train? Sentence16: Thanky you, that's all I need today. Sentence17: The Byard Art Museum is located at 14 King's Parade and is free to get in. Sentence18: You're welcome. Have a great trip. Goodbye. Sentence19: I will need to leave by 17:00 please. Sentence20: I would like to find a place to go in the south part of town. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User