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: The Alpha Milton Guest House is of moderate price and located in the north cambridge area. Sentence2: The Hamilton Lodge happens to be moderately priced and offers free wifi and parking, would you like me to book this hotel for you? Sentence3: I want a hotel that's in the moderate price range. Sentence4: The phone number is 01223350688. Is there anything else that I can do for you? Sentence5: Your booking was successful and your reference number is BOBT5BLT . Is there anything else I can help you with? Sentence6: I can book you at the Hamilton lodge if you would like. Sentence7: I would like it also to be in the north and moderately priced. Sentence8: Yes, please book this. Sentence9: Can you help me find a 3-star hotel in the north of Cambridge? Sentence10: Great can you book it for 2 people for 4 nights starting thursday? Sentence11: I don't need it booked. I just require the phone number. Thank you. Sentence12: That is everything I needed for today. Thanks! Sentence13: You're welcome! You have a great day! Sentence14: There are 17 Chinese restaurants. Is there a particular price range or area you'd like? Sentence15: What date, time, and party size would you like to book? Sentence16: As long as it is a hotel and not any other type, then yes book it for me. Sentence17: I can recommend Golden Wok, would you like me to book a reservation there for you? Sentence18: Yes. I also need to find a restaurant that serves chinese food. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System