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: Awesome, you have a wonderful day! Sentence2: I have two 0 star guesthouses with free parking. One is in the north and the other is in the centre. Should I book one of them for you? Sentence3: You are booked on TR8078. Your reference number is Y3T1L5E6 . The price is 10.10 pounds. May I help you with anything else? Sentence4: Your booking is confirmed at El Shaddai. Your reference number is J7BTDTOL . Can I help with anything else? Sentence5: I don't care about the location. Either one will work. Just book it for 1 for 5 nights starting on Sunday. Sentence6: Well we have quite a few guesthouses. Anything in particular your interested in? Cheap, moderate or expensive? Sentence7: Yes please, I am also looking for a train to depart on Friday from Cambridge at 10:15 to Bishops Stortford. Sentence8: There are two guesthouses in the cheap price range that offer free parking and free wi-fi. One is in the north and one in the centre of town. Sentence9: I would like it to include free parking as well, with a star of 0. Sentence10: Hi, I'm looking for a place to stay that has free parking. Sentence11: Actually, I need it to have free parking and free wifi. Do you have any hotels with these amenities? Sentence12: The earliest train after 10:15 leaves at 11:29. Will that work for you? Sentence13: Please book 1 seat for friday on the 11:29 train going to bishops sortford. Thanks! Sentence14: No. Thank you. That's all for today. Sentence15: Yes, but can I have the price first? Sentence16: It's 10.10 pounds, would you like a booking? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System