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: No specific area, but I would like it for Friday. Sentence2: TR0035 arrives by 08:09. Does that work for you? Sentence3: And where will you be coming from? Sentence4: I'll be coming from Peterborough. All 7 of us will need tickets for the train. Sentence5: Hi, I am looking for a restaurant that is expensive and serves European food. Sentence6: Yes, please include the reference number. Sentence7: Thank you, that is all for today. Goodbye. Sentence8: I'd like to make reservations for 7 people at 11:15 on Friday please. Sentence9: Yes of course, the reference number for the train is MU82CCWU . Sentence10: Okay, I recommend City Stop Restaurant. What time would you like the reservation for and for how many people? Sentence11: I show 5 listings. Would you like a certain area of town? Sentence12: Have a great day! Sentence13: Thanks, I'm also looking for a train for Friday that goes to Cambridge and arrives by 08:15. Sentence14: You have a table reserved for 7 on Friday at 11:15. Your reference number is V2IWL8VW . Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System