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're all set, your reference number for the booking is UFVH6K6Y . Sentence2: What is your day of travel and your preferred arrival time? Sentence3: The guesthouse will be ok, as long as it's rating is a star of 4. Sentence4: No, I need a hotel, not a guesthouse. Sentence5: The only hotel in the area is a guesthouse called, a and b guest house. They are 4 stars. Sentence6: Yes, indeed, the A and B guesthouse does have a 4 star rating. Would you like a booking? Sentence7: That would be great. I am also looking for a hotel. I would like to stay in the east side of town, and I do not need parking. Sentence8: You're welcome. Have a great day too! Sentence9: I'm leaving from Stevenage and I'll need to leave sometime after 21:15 if possible. Sentence10: Train TR3190 will depart at 21:54, would you like me to book that for you? Sentence11: I need a train to cambridge Sentence12: Thanks, that's all I need. Have a nice day. Sentence13: I am sorry but there are no hotels in that area. a and b guest house has 4 stars. Would you like to give it a try? Sentence14: Can I book 4 nights for 6 people on that same Wednesday? Sentence15: I'm working at leave on Wednesday after 21:15 Sentence16: Where will you be leaving from? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System