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: Cineworld is in the South and their number is 00872208000. Is there anything else I can help you with? Sentence2: Yes! I am leaving from Cambridge on Tuesday. You need this info. Sentence3: The price of the train is 75.10 pounds. Sentence4: Sounds great. What area is that in? And could you get me the phone number? Sentence5: What time does that train arrive? Sentence6: Alright and when would you want to leave by? Sentence7: What is the best cinema in Cambridge you can recommend? Sentence8: Would you like reservations for the train? Sentence9: Okay, I'm all done for today. Thanks, bye Sentence10: The train arrives at 23:44. Sentence11: Cineworld and Vue are both excellent. Do you prefer the south or centre of town? Sentence12: The exact area does not matter. Sentence13: How much is it? Sentence14: I also need a train. Sentence15: I am going to birmingham new street and want to leave after 21:00 Sentence16: Cineworld is located at cambridge leisure park, clifton way. Sentence17: TR5600 leaves at 21:01. Can I book a seat for you? Sentence18: I will book it for you,is there anything else I can do for you ? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System