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: Can I get the Arrival Time and Train Please? Sentence2: There are 5 expensive restaurants serving italian food, would you prefer town centre or in the south area? Sentence3: Any area is fine, but can I get the phone number and address of one of your recommendations? Sentence4: Train TR9360 arrives at 16:44. Sentence5: There are trains departing from Cambridge going to ely at 1350 daily. Sentence6: You're welcome. Have a great day! Sentence7: Great I need to get a ticket on Thursday going to birmingham new street Sentence8: Thank you for your help! Sentence9: Great, that's all I needed for today. thank you very much. Sentence10: Also, do you have a listing of any expensive restaurants that serve halal or italian dishes? Sentence11: Clowns Cafe is located in the centre part of town. Was there any other information you needed. Or a reservation perhaps? Sentence12: Have a great day, thank you for using our service. Sentence13: I would like the area for this cafe please. Sentence14: Great your booking is all set! Sentence15: I'd like to take a train from Cambridge at quarter to 2. Sentence16: The number for Clowns Cafe is 01223355711 and the address is 54 King Street City Centre. Would you like the reference number for your train ticket? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System