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: I have successfully booked your restaurant reservation for 1 and your reference number is NKSZHAGP . Sentence2: I am looking for a swimming pool in the area. Sentence3: Yes please try Sitar Tandoori Sentence4: You're welcome. Have a great day! Sentence5: I'm so sorry, but they don't have a table available at that time. Would you like to try for another day or time? Sentence6: I do not have an entrance fee listed but the address for the pool is pool way, whitehill road, off newmarket road and their telephone number is 01223902088. Sentence7: the Sitar Tandoori is located at 43 High Street Cherry Hinton, postcode cb19hx. Would you like to make a reservation? Sentence8: There are two, pipasha restaurant, and sitar tandoori would you like one of those? Sentence9: What is the entrance fee, address and postcode for the Abbey Pool? Sentence10: Yes please, for 1 person at 17:30 on thursday. Sentence11: Thanks. I need a place to eat too. Any expensive indian places near the pool? Sentence12: Abbey Pool and Astroturf Pitch is in the east part of town. Would you like their phone number? Sentence13: Thank you that is all I will need. Sentence14: Yes, let's try 16:30 please. Sentence15: I'm looking for one on the east end. Sentence16: There are 4 swimming pools available. Are you looking for one in a specific area? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User