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: I cannot find the info on free wifi or not, I apologize. Sentence2: Is that in the west area. I really would like to be in the west. Sentence3: There are quite a few hotels that meet that requirement. Do you have a preference on what part of town you'd like to be in? Sentence4: Is there anything else I can help you with? Sentence5: You're welcome. Have a nice day. Sentence6: I really don't. Do you have any recommendations? Sentence7: No, that's good thank you for all of your help. Sentence8: curry garden is a nice place to dine. Do you want to book ? Sentence9: Here is one in the west. Will this work for you maharajah tandoori restaurant. Sentence10: I will recommend the huntingdon marriot hotel to you. It is a 4 star hotel with free parking and wifi and has excellent reviews though expensive. Sentence11: I don't want to book it just yet. Thanks for all your hard work. Sentence12: Done! Your reference number is 2AYFR5LL . Do you need help with anything else? Sentence13: Great. I would like that. Can you book us for 8 people on Thursday at 16:45? Sentence14: I'm also looking for a hotel. I need free parking. It can be an expensive place. Sentence15: My mistake. Yes, there is free internet. Would you like for me to book it for you? Sentence16: I'm actually looking for an expensive restaurant that serves Indian food Sentence17: It should be right there under internet... Sentence18: Does that include free wifi? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System