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: Byard Art is a museum in the south. It is free and located at 14 King's Parace. Phone #01223464646. Sentence2: carolina bed and breakfast is a great pic. It is a 4 star guesthouse in the east part of town in the moderate price range with both free internet and parking Sentence3: Thank you for using our service today! Sentence4: Done! Your reference number is LFN02VLJ . Can I help you with anything else? Sentence5: There is carolina bed and breakfast that is 4 stars and moderately priced. It has free parking and internet. Would you like me to book this for you? Sentence6: You're welcome, let me know if I can assist with anything else. Sentence7: Would you like me to book it for you? Sentence8: That sounds lovely. Could you book it for me please? The 4 of us are coming in on Sunday for 4 nights. Sentence9: Hello, I am looking for a museum attraction in the south part of town. Sentence10: I will book that for you now. Sentence11: No that will be it. Thank you. Sentence12: What area would you like to stay in? Sentence13: Yes I will need a taxi between the hotel and venue and I need to leave the hotel by 22:45. Sentence14: Sorry, I think I garbled that- it's at 14 King's... what's the address again? Sentence15: No thanks. That's all the help I need today. Sentence16: I'd like to stay in the east. Sentence17: Ok, thank you. Also, I need a place to stay in the moderate price range. Free parking is not necessary. Sentence18: Actually, could you find a hotel for me? I would like it to be in the moderate price range. Sentence19: I am not sure what you asked the address is in the chat history. Thanks Sentence20: Yes, please. Leaving the hotel by 22:45. Sentence21: The car picking you up will be a black tesla and their contact number is 07911492515. Is there anything else I can assist you with? Sentence22: Thank you, please do! Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System