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 would rcommed the j restaurant, would you like me to book you? Sentence2: Yes. Can I get the travel time? Sentence3: Okay and where are you departing from? Sentence4: Ok, let's try to find an asian oriental restaurant. Sentence5: I am also looking for a train I'd like the train to arrive by 14:15 and to be here on Saturday. Sentence6: Thanks! I guess that's all I need. Have a good one. Bye. Sentence7: You're welcome, just let us know if you need anything else! Sentence8: I'm sorry, there are no Romanian restaurants available. Sentence9: I'm looking for some romanian food around here. Sentence10: The reservation number is RFD4W3BO . Anything else I can help you with? Sentence11: Great, I will book that for you now. Sentence12: I have five. Is there an area you prefer? Sentence13: Yes I need a reservation for 6 people at 17:30 on a Saturday. Sentence14: I need a confirmation number too thank you Sentence15: The travel time is 105 minutes. Sentence16: I need to depart Leicaster and arrive in cambridge 14:15 on saturday. I'll just need the travel, no booking. Sentence17: I need a cheap price range. Sentence18: There is a train that departs at 9:09 from Leicester on Saturday at arrives at 10:54 the same day in Cambridge. Is this good? Question: Who has spoken the sentence 17? (A) User (B) System
Output: 


Answer: (B) System