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: We would like a place in the north which includes free wifi and free parking. Can you find something fitting this? Sentence2: The reference number is MNKWT71T . Is there anything else I can help you with today? Sentence3: Yes please make reservations for sunday for 3 people. Sentence4: I have two that match your criteria. I'd recommend the Ashley Hotel on Chesterton Road. Will that work for you? Sentence5: The TR5298 leaves at 17:29. Would you like me to book tickets? Sentence6: Could you please get me three tickets for a train that leaves after 15:45? Sentence7: I would like to leave on Sunday please. Sentence8: What is the reference number? Sentence9: Your booking was successful and the total fee is 24.24 GBP. Will there be anything else? Sentence10: What day would you be needing the train? Sentence11: Hey could you help me figure out the train schedule? I need to go to Cambridge I am leaving from bishops Stanford station. Do you know the times? Sentence12: The train leaving Bishops and arriving in Cambridge has a consistent Sunday schedule. Beginning at 5:29 a.m., a train leaves exactly two hours later all day. Next train 7:29, etc. Sentence13: How many tickets are you looking for? Sentence14: i need tickets for three people. Sentence15: Do you have any preferences for the hotel, like price range or area of town? Sentence16: I also need a hotel for 3 people starting Sunday and for 4 nights. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System