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: Yes, is Hamilton Lodge a guesthouse or hotel? I prefer a hotel. Sentence2: I can help you with that. Where will be departing and where do you want to go? Sentence3: The train that arrives at 10:07 would depart at 09:50. Sentence4: Thank you. Appreciate all the help. Sentence5: There are 11 options for you. If you have no further specifications, then I recommend hamilton lodge. Sentence6: Yes it is. Would you like to book it or do you need more info? Sentence7: Yes I need to book it for 5 people. We will be staying 5 nights starting monday. Sentence8: I was able to book The Ashley Hotel. Your reference number is DDEI8K1U . Sentence9: Yes please. I need it for 5 people for 5 days. Sentence10: I have made that reservation for you. Your reference number is LJ3XA5IZ . Is there anything else I can help with today? Sentence11: How many tickets are you needing? Sentence12: I have 11 different options for you. Is there a certain price range or star level you would like? Sentence13: Trains run that route every two hours throughout the day. Do you have a target departure or arrival time? Sentence14: Yes, please book it. Sentence15: I would like to arrive in Ely by 11:15. Could you please tell me the price and what the departure time is? Sentence16: Is there anything else I can assist you with? Sentence17: Is Hamilton Lodge located in the north area of town? Sentence18: No, it should include free wifi. Sentence19: No I appreciate your help. Goodbye. Sentence20: Have a great trip. Goodbye. Sentence21: TR0718 arrives at 10:07 on saturday. Cost is 3.52 pounds. Would you like me to reserve a seat for you? Sentence22: Hamilton Lodge is indeed a guesthouse. I am showing 2 hotels in the North both have a two star rating. Would you like me to recommend one? Sentence23: I will be departing from Cambridge and going into Ely on Saturday. Sentence24: I'm sorry, I just needed the train info. However, I need a place to stay in the North preferably with parking. Can you assist? Sentence25: Hi, could you help me with my plans? I am looking for a train. Sentence26: I see it arrives at 10:07 but so you have the departure time? Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System