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: Sure the address is jesus lane and the phone number is 01223452587, there is no entrance fee's either. Sentence2: All Saints Church is in the centre area and has free admission. Sentence3: I can help you with that. What type of attraction are you looking for? Sentence4: Sure, can you get me the information? Sentence5: i am looking for a place to stay. The hotel should be in the north and should include free wifi. Sentence6: Can you tell me the address and phone number to the All Saints Church. Sentence7: Sure thing! How many people will be staying, what day to you want your stay to start, and how long? Sentence8: Cool. Can you have a taxi pick me up at 19:00 at the hotel and take me to the attraction? And i'll need car and contact info Sentence9: 1 people, 4 nights starting monday. Thanks. Sentence10: How about all saints church? Sentence11: You are welcome. It was my pleasure to help you. Goodbye from the Cambridge TownInfo centre. Sentence12: Booking was successful. Reference number is : 3AHJV6HE . Sentence13: I would like something with architecture I think. Sentence14: I think that's all I need for today. Thanks for the help. Goodbye. Sentence15: A grey skoda is booked for you and can be reached at 07908464807. How else can I help? Sentence16: Does it have 4 stars? If so, go ahead and book it! Sentence17: The Archyway House is a guesthouse in the north with free internet and parking. Would you like me to book for you? Sentence18: I am also looking for an attraction in the middle of town. Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User