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: Yeah, what's the price and departure time on TR5773? Sentence2: I would like to leave on Monday. Sentence3: Great. What is All Saint's Church's address and postcode, please? Sentence4: That's all I needed. Thank you for your help Sentence5: 09:15 and should depart from cambridge Sentence6: The departure time is 07:36. It is 17.60 pounds. Is there anything else I could help you with? Sentence7: Sounds good. What is their entrance fee? Sentence8: I don't really know. What do you suggest in the city center? Sentence9: There are none that will leave by 09:15 will the 09:36 be ok? Sentence10: Train TR5773 suits your needs. Is there anything else I can help you with today? Sentence11: Actually, I need to arrive by 09:15. Is there anything early morning on Monday from Cambridge to Norwich? Sentence12: They are located at jesus lane, and their postcode is cb58bs Sentence13: Thanks. I am also looking for a train from Cambridge to Norwich, could you help me find one? Sentence14: There are 19 trains that go to norwich from cambridge what time would you like to leave or arrive? Sentence15: Great, have a good day! Sentence16: I show 44 attractions in the centre of Cambridge. Was there a specific type of attraction you were looking for? Sentence17: There is much architecture here worth taking a tour of. I am a fan of All Saint's Church. Sentence18: I'm looking for attractions to go in the centre of Cambridge, please. Sentence19: Entrance to All Saints is free. Sentence20: Sure, there are 133 trains from cambridge to norwich. What day would you like to travel on? Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User