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: Nope, I'm open on price. It doesn't need to have internet. Sentence2: Is price important to you? Sentence3: I don't have a preference. Sentence4: There are a lot of options in that area. Would you prefer something free to visit? Sentence5: Okay, how about the Alexander Bed and Breakfast? Sentence6: Okay, you're all set! Your room has been reserved and your confirmation number is 4X57GWOC . Is there anything else I can help you with? Sentence7: Hello, I am planning a trip for next month. Can you suggest some places to go in town? Sentence8: Can you select one? I also need the entrance fee, if there is one. Sentence9: I also need to book a taxi when I got from the hotel to Cambridge Punter. I'd like to leave the hotel by 01:00. Sentence10: Thank you. I also need a hotel in the same area as the Cambridge Punter. Sentence11: That sounds great, can you book it for me for 3 people? Checking in monday and will be staying 4 nights. Sentence12: there is scudamores punting co or the cambridge punter Sentence13: Do you have any specific attractions in mind? Sentence14: I prefer the Cambridge Punter, but I don't have the fee information for any boat attractions. Their number is 07807718591 - I'm sure you could call and find out. Sentence15: I am interested in boat attractions in the centre. Sentence16: Okay. We have you booked. The car type will be a black BMW. The contact number is 07167383694. Can I help you with anything else today? Sentence17: Thank you for contacting us and have a nice day. Sentence18: no thanks you have been very helpful to me Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User