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'm also looking for a restaurant in the same price range as the hotel can you help me out? Sentence2: I have booked a black honda for you that will arrive at 18:00. Please call 07851425026 if you need to adjust the pick up time. Do you need anything else? Sentence3: How about the acorn guest house? It has parking and wifi. Sentence4: I'm looking for a moderate price hotel in the north part of town. Sentence5: There are 10 hotels which match your requirements. Do you need parking? Sentence6: That will work. What is the phone number, address, and star rating for the hotel? Sentence7: Yes I need parking. Sentence8: Great thank you very much that's all the info I need. Sentence9: Yes, I actually need to arrive by 16:00 at the restaurant so the 18:00 will not work. Sentence10: That sounds good. I need a table for two at 16:00 on Thursday. Sentence11: I don't have fusion, but the nirala serves indian food in the north area, and is moderate priced. Sentence12: Great. Thank you for contacting Cambridge Towninfo Centre. Sentence13: I have booked you a grey BMW from Acorn Guesthouse to Nirala in time for your reservation at 16:00. Contact number is 00273193767. Is there anything else I can help you with? Sentence14: From the hotel to the restaurant, please. Sentence15: I found 11 moderately priced hotels on the north side. Is there a star rating you would prefer? What about parking or internet? Sentence16: Do you want to go from the restaurant to the hotel, or from the hotel to the restaurant? Your restaurant reservation is at 16:00. Sentence17: How about the the nirala? They are moderate price range and are in the north. Sentence18: Okay, I have that booked for you, Thursday at 16:00 for two people. Here is your reference number: W7R9KEYJ . They will hold your table for 15 minutes. Sentence19: Is there one that serves fusion food and if they don't, is there any that serve indian food? Sentence20: I don't care about star rating so much, but it the hotel needs to include free wifi. Sentence21: Sure, the phone number is 01223353888, the address is 154 Chesterton Road, and it has a 4 star rating. Sentence22: Wonderful, thanks. Can you also help me find a taxi that can take me from the restaurant to my hotel? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System