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: Okay. Then to book I will need to know what time you want to either leave the restaurant or what time you'd like to arrive at the hotel by. Sentence2: Yes, please book a table for 1 people at 18:30 on sunday. Sentence3: No particular price range, but I would like free parking. Sentence4: I need it to go from the restaurant to the hotel. Sentence5: yes and which area would you be interested in ? Sentence6: Can you help me find a moderately priced resaturant in the south that serves latin american food? Sentence7: How about Italian food. You do have Italian restaurants don't you. Moderately priced and in the south area would work fine for me. Sentence8: Booking was successful. The table will be reserved for 15 minutes.Reference number is : AM10LQ20 . Sentence9: Four nights starting Sunday Sentence10: There are no restaurants available matching what you mentioned. Sentence11: The only moderately priced Italian restaurant in the south part of town is the Pizza Hut Cherry Hinton. Would you like a reservation? Sentence12: it should be to the hotel Sentence13: How about huntingdon marriott hotel? Sentence14: I'm sorry for all the confusion on this call, and I appreciate your patience. Thank you. Goodbye! Sentence15: I need to be at the restaurant by 18:30 for my reservation, the pick up time doesn't matter to me. Sentence16: Sure there are a few options. Did you have a price range you were looking for? Sentence17: Thank you, can I also book a taxi? Sentence18: Booking completed! Booked car type : blue bmw Contact number : 07611077714 Sentence19: Your booking was successful. Your reference number is : LNRXN5ZT . Sentence20: I'm sorry I need clarification. Do you need a taxi to the restaurant or to the hotel? Sentence21: Sure, I need the reservation to be for 4 people. Sentence22: The area does not matter. But, I need it to be an actual hotel and have 4 stars. Sentence23: we don't have that in our records. can you change the type of food? Sentence24: That's great. Thank you. Sentence25: I'm looking for a latin american restaurant in the moderate price range. Sentence26: Yes, where would you like to go to and from? Sentence27: I'm sorry. Let me clarify. I need a taxi to pick me up at the hotel and I want to arrive at the restaurant by 18:30. Sentence28: Yes, can you help me find a place to stay, a 4 star hotel? Sentence29: No worries. You have a great day. Goodbye. Sentence30: I can book you a taxi from Pizza Hut to Huntingdon Marriot, what time would you like the taxi to pick you up? Sentence31: And what nights would you like me to reserve for you? Sentence32: Was there anything else I could help you with today? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System