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: Yes I would like more information on both museums. Sentence2: There are two museums nearby, would you like more details about them? Sentence3: i need a place to stay Sentence4: Sure, we have 6 guesthouses and 1 hotel. What is your price range? Sentence5: I would love to help. Which part of town? Sentence6: I'd like some suggestions on places to go in the same area as the guesthouse. I need the address, postcode, and attraction type. Sentence7: What is the phone number for Allenbell? What are some places to go in town close to the hotel? Sentence8: That is all I need. Thanks. Sentence9: Our family lives in the east, so how about close by. Sentence10: price does not matter. but i need a 1 star Sentence11: Allenbell is a 4 start guesthouse on the east in the cheap price range with free wifi and parking. Sentence12: The phone number for allenbell is 01223210353 Sentence13: How about a 4 star with free wifi? Sentence14: ok, great! have a wonderful day. Sentence15: I don't have any 1 star hotels in the east. Sentence16: saint barnabas press gallery is located in the belfast yard, coldham's road , cb13ew and gallery at twelve a high street is at fulbourn,cb15dh Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User