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: No that's everything I need. Thank you! Sentence2: Phone number is 01223295264. Postcode is cb30aq. Address is 23 high street, fen ditton. Sentence3: Okay thank you very much. Sentence4: What train do I need to take to get to Norwich from Cambridge? Sentence5: How about the Lynne Strover Gallery? Sentence6: That sounds wonderful. Can you give me the address, postcode, and phone number? Sentence7: Excellent. I'm also looking to go to a museum on the west part of town. Sentence8: Yes book the ticket please. Sentence9: Sure. The price per ticket is 14.08 pounds. Can I book you a ticket? Sentence10: Can I ask how many tickets you will need? Sentence11: You're very welcome, have a great day and text us back any time! Sentence12: I'll be leaving Sunday and need to arrive by 21:30. Sentence13: Can I help you with anything else today? Sentence14: Yeah, can I please get the price? Sentence15: It looks like there are trains from Cambridge to Norwich every day. What day/time will you be traveling on? Sentence16: TR4082 will arrive by 20:55 would that work for you? Sentence17: On second thought, I don't need a ticket reserved. Could you tell me what the travel time will be on that train, though? Sentence18: Sure - the trip from Cambridge to Norwich is 79 minutes. Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User