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 bold letters tells me no interest in a guesthouse huh? I ran a search there are two hotels, gonville and university arms. Any preference? Sentence2: I'm afraid our restaurant system is currently down. Can I help you with something else at this time? Sentence3: i'd like the gonville please. make a reservation if you can for thursday for 1 person, 3 nights. Sentence4: Other than the museum previously mentioned, I also suggest checking out the Cambridge University Botanic Gardens on Bateman Street. Sentence5: Ok, I think we've already established the attraction in the town centre. The next thing I need is a HOTEL in the centre that includes free parking. Sentence6: You're welcome. Is there anything else I can assist you with? Sentence7: That's perfect. Thanks so much for your help. Sentence8: Is it true Cambridge has the best attractions? We are looking for something unusual to do in the centre. Sentence9: Thank you for using the Cambridge TownInfo centre. Goodbye. Sentence10: I would like chinese. Sentence11: I'd be happy to help with your request, what area and what type of cuisine are you looking for? Sentence12: Yes can you help me find a place to eat too? Sentence13: No. That is all for now. Sentence14: Booking was successful. Reference number is W0P1SD78 . Anything else I can help you with today? Sentence15: There is teh museum of archeology and anthropology in the centre that is free of charge Sentence16: i would like to go site seeing Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System