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: The Aylesbray Lodge is a guesthouse in the south area located at 5 Mowbray Road. The pricing is moderate. The phone number is 01223240089. Would you like to book a stay? Sentence2: Thank you that will be all I need. Sentence3: I'm happy to be of service. Goodbye! Sentence4: Okay there is one option here. It is cherry hinton water play. Entrance is free. Would you like help with anything else? Sentence5: So we have you at a place to stay with something to do for fun, anything else before I let you go? Sentence6: i am looking for a particular hotel. Its name is called aylesbray lodge guest house. Sentence7: There are five parks in town. Were you hoping for a certain area of town? Sentence8: Can you also confirm the area that is in please? Sentence9: In the East preferably. Sentence10: No, I can do that. I am looking for places to go in town, a park. Sentence11: Thank you so much! Sentence12: The postcode is cb18dw. Sentence13: That is in the east area. Sentence14: Can you tell me the postcode? Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User