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: Great, where should I send the car? Sentence2: I have made the reservation and your reference number is NREAFG7R. Sentence3: I would like to check in on the same day. Sentence4: What price range would you like? Sentence5: Yes I will have four guests total. Sentence6: Can you help with a taxi? Sentence7: I just want something cheap. Sentence8: I also need a taxi. It should arrive at the restaurant by 18:30. Sentence9: There is an italian or vietnamese restaurant that meets your criteria, do you have a preference? Sentence10: Okay I got you a grey Audi that will pick you up from the Alexander and their contact number is 07649834873. . Sentence11: Thank you, I'll wait on your response. Sentence12: Thanks. I think that's all I need help with today. Have a great day! Sentence13: Yes, I need a room for 4 nights beginning on sunday. Sentence14: alexander bed and breakfast meets your criteria, shall I make a reservation? Sentence15: How many people will be staying at the hotel? Sentence16: The italian restaurant is called La Margherita. They are located at 15 Magdalene Street City Centre. Can I reserve a table for you? Sentence17: What is the Italian place? Sentence18: What area are you looking to dine in? Sentence19: Sure, what are you in the mood for? Sentence20: And on what day and time would you like the reservation? Sentence21: The price doesn't matter. I need a place that included free wifi as well. Sentence22: Sorry, before a taxi I need a place to stay. I need it to include free parking & be in same area as the restaurant. Sentence23: your set, reference # is 6MMV9XTU, anything else for you today? Sentence24: As I just said, at the restaurant by 18:30. Can I please get the car type and reference number? Sentence25: Okay I'm looking for a restaurant today. Sentence26: And what time would you like to dine? Sentence27: 4 please, for 4 nights, starting on Sunday. Sentence28: 18:30 on Sunday please. Sentence29: I'd like something in the west please. Sentence30: I will get that information for you. Sentence31: Thank you for using the Cambridge TownInfo centre. Have a great day! Sentence32: what is your destination? Question: Who has spoken the sentence 24? (A) User (B) System
Output: 


Answer: (A) User