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: Would you like me to book you a train, or possibly a taxi? Sentence2: The travel time on train TR8070 is 105 minutes. Would you like me to book this for you? Sentence3: The avalon meets your requirements. Would you like reservations? Sentence4: No, but I would like a 4 star rating. Sentence5: What is the earliest you would be like to leave by? Sentence6: Thank you! You as well! Sentence7: Will you be needing parking and/or internet? Sentence8: How about 9:09 will that work for you? Sentence9: No I don't have a leave time preference. Just not too early if I don't have too. Sentence10: I don't need anything further. Sentence11: No but I am also looking for a place to stay in a moderate price range. Sentence12: It is indeed a guesthouse, and I booked it for you. Your reference number is 2QPHXXOJ . How else can I help? Sentence13: That might be too early. Sentence14: Have a nice day. Sentence15: I'll take the one that leaves at 9:09. It's fine. What is the travel time on that train? Sentence16: Thank you for contacting us have a nice day. Sentence17: Thank you for making that reservations. Sentence18: Is there a time you would like to leave by? Sentence19: I'm looking for the train which arrives in Cambridge from Leicester. It should arrive by 19:30 Sentence20: Parking and internet are not of interest to me really. Sentence21: Hello, do any trains run on Saturday? Sentence22: There are several in the moderate price range. Do you have a certain area in mind? Sentence23: Yes, we have many trains that operate on Saturday. Would you like to book one? Sentence24: Is the Avalon a guesthouse? If so, yes I would like to book for Saturday for 6 people, 4 nights. Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System