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: You are booked at frankie and bennys for 3 at 1545. your booking number is T01E84XG Sentence2: TR2045 leaves at 18:11 and arrives at 18:38. Would that be acceptable? Sentence3: please do. i would also like help finding an expensive restaurant. Sentence4: South area, and food type doesn't matter. I need it for 3 people at 15:45 on the same day, if that time doesn't work 14:45 and i'd like a reference number. Sentence5: There are 146 departures from Cambridge on Sunday that match your arrive by time. Where is your destination? Sentence6: TR3212 leaves Cambridge at 05:11 and arrives in Kings Lynn at 05:58. Will this one work for you? Sentence7: Where will you be departing from? Sentence8: I want to leave on Sunday, please. Sentence9: Thank you for your help. That is all I need. Sentence10: How many seats do you need on that train? Sentence11: kings lynn and I also looking for a restaurant in the south and expensive price range Sentence12: I'd like something a little later in the day, please. Sentence13: arriving by 19:30 on sunday. I need the train's ID please. Leaving cambridge going to kings lynn Sentence14: Okay. Glad I could be of help. Sentence15: I'll be departing from cambridge and want to arrive by 19:30 on sunday. Could I also get the train ID as well? Sentence16: what day would you like to leave? Sentence17: Hi. Can you help me find a train? Sentence18: There are several fine restaurants. What area and what type of food would you enjoy? Sentence19: that sound just fine Sentence20: Would you like me to book tickets for you? Sentence21: Sure, I can help you with that. First, let's find the train. How early would you like to leave? Sentence22: I do not need train reservations. I need help finding a restaurant. Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User