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: And what day are you traveling? Sentence2: The TR7706 leaves at 16:05 and arrives in Peterborough by 16:56. Would you like me to book some tickets for you? Sentence3: We would like to leave on Wednesday please. Sentence4: Yes, the cambridge contemporary art museum can be found at 6 trinity street, postcode cb21su, phone number 01223324222. Sentence5: Yes book the tickets,also I want places to go in town and I want it to be at the center of the town. Sentence6: Hi, can you help me find a train out of Cambridge please? Sentence7: I can. Where will you be traveling to? Sentence8: Thank you. Can please also confirm the phone number, post code, and address? Sentence9: Yes, train TR7706 has a duration of 50 minutes. Sentence10: No, I don't really care when we arrive as long4 as the departure is after 15:45 Sentence11: I'll be headed to Peterborough, and I need to leave after 15:45. Sentence12: There are 16 trains headed to Peterborough that leave after 15:45. Do you have a preference on when you arrive in Peterborough? Sentence13: You're welcome. Have a nice day. Good bye. Sentence14: I got ahead of myself, sorry. I don't need the train tickets just yet, but can you tell me the travel time for TR7706? Sentence15: In the center of town we have vue cinema, cambridge contemporary art and castle galleries. Sentence16: Perfect, that is all that I needed. Thank you so much for your help! Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User