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: What is the entrance fee for the Milton Country Park? Sentence2: I need information on the Aylesbray Lodge Guest House, please. Sentence3: Thank you for the information. I will call a cab presently. Enjoy your stay at The Milton, it was a pleasure. Sentence4: In the north we have riverboat georgina, milton country park, jesus green outdoor pool, and kings hedges learner pool. Are you interested in learning more about any of these? Sentence5: Sure. The guesthouse is a 4 star hotel located in the south part of town. It is moderately priced and offers free wifi and free parking. Sentence6: That is good. Can I please book it? Sentence7: Before booking, what are some interesting sites to visit that are in the north area? Sentence8: The Milton Park will do wonderfully, I will need a cab. Sentence9: The entrance fee for the Milton Country Park is free. Are you interested in learning about other sites in the north? Sentence10: Of course! How many guests will be visiting and how many days would you like to stay? When would you like to begin your stay? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User