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: There are 23 museums available. Which part of town do you prefer? Sentence2: Can you please give me more information? There are numerous trains leaving on Friday to Cambridge. Sentence3: we have lovely museums in the east, west, south and centre. I prefer the byard art myself that's in the south Sentence4: Sure, there are plenty of trains that match your requirements. Did you have a particular time of day you were wanting to travel on Friday? Sentence5: I would like to give that a try. What is the entrance fee, phone number and area? Sentence6: I'm fine with any area of town. Sentence7: How many tickets can I book for you? Sentence8: I am leaving cambridge on Tuesday and going to Birmingham new street. Sentence9: Thanks so much. That's all I need. Goodbye! Sentence10: How about the one arriving at 01:44. Sentence11: byard art museum is located in the south part of town. Their entrance fee is free. Their phone number is 01223464646. Can I further assist you today? Sentence12: I would like to leave after 21:45. Sentence13: I would also like to go to a museum. Sentence14: What is the travel time for the one arriving at 1:44. Sentence15: The travel time for TR4724 is 163 minutes. Sentence16: Yes, I am hoping you can give me some information on a train. Sentence17: There are two trains that fit your criteria. One will arrive at 24:33 and the other at 01:44. Which suits your needs? Sentence18: You are welcome! I hope you enjoy your time at the museum. I am happy to have been able to assist you. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User