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: Thanks! I don't care, I just want to leave at 06:45, please. Sentence2: Thanks again, goodbye. Sentence3: I don't have a preference. Just need it to be cheap and in the south. Sentence4: It is rated 3 stars and is in the south and its address is 151 Hills Road. Sentence5: Is Bridge Guest House in the south? If so, I will also need a taxi to take me from the restaurant to the guesthouse. Sentence6: please get me their address. Sentence7: Yes bridge guesthouse is in the south. Sure when would you like to leave the restaurant? Sentence8: bridge guest house has a 3 star rating and is at 151 hills road Sentence9: OKay, I am glad I could assist. Sentence10: sure, when would you like arrive by? Sentence11: I will be happy to help with that, is there a certain area you were looking to stay at? Sentence12: I'm looking for a cheap restaurant. Can you help? Sentence13: Yes, I need a place to stay, a guesthouse please. Sentence14: Thanks that's all I need. Sentence15: Sure, what kind of food were you interested in? Sentence16: What is the star of that hotel? The address, including area of town too. Sentence17: I'm looking for something in Cambridge, probably in the south as well, but it's not necessary. Sentence18: Sure, it's Cambridge Leisure Park Clifton Way cb17dy. Is there anything else I can help you with? Sentence19: Alright ive booked you a red volkswagen from nanfos to the bridge guesthouse that leaves at 06:45. their contact number is 07562063340. Anything else I can do to help? Sentence20: you are welcome to Cambridge Sentence21: Nandos is my favorite. Cheap but excellent Portuguese place. Would you like a table there? Sentence22: Great, thanks. Can you also help me get a taxi from the restaurant? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User