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: That is all the information I need. Thank you! Sentence2: Which area and type of lodging do you prefer? Sentence3: You're very welcome. Have a great trip! Sentence4: you're welcome to use our services anytime Sentence5: Wait! I do want the hotel reservation. Can you book it for me on Thursday for 4 nights for 4 people? Sentence6: No that is all the info I need. I'm sure of it this time ha ha. Thank you! Sentence7: The Acorn Guest House is a great little 4-star place on the north side. They're moderately priced and have free parking and internet. Would you like a room there? Sentence8: Do you know what this city might have in entertainment venues? Sentence9: Is there a place to stay with a moderate price range and free parking? Sentence10: I'm looking for a place that is moderately priced and has free parking. Sentence11: I don't care about the area. If you were me, which one would you enjoy the most? Sentence12: Your room at the Acorn is booked, ref#94RRN05R . Is there anything else I can help you with today? Sentence13: There are two entertainment venues in the east, two in the south and one in the west area of town. Do you have an area preference? Sentence14: I would pick whale of a time in the west, located at Unit 8, Viking Way, Bar Hill, postcode cb238el. It is always an adventure there! Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System