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 would like a cheap restaurant in the centre of town. Any suggestions? Sentence2: Got you booked- black skoda phone 07407455573. Anything else I can help you with? Sentence3: Sure, I can do that. Can you give me the time frame for the taxi? Sentence4: Thank you. I'm looking for a cheap guesthouse to stay at as well, are there any 4 star accommodations like that? Sentence5: This works. Can you book a table for 8 people at 11:45 on Friday? Sentence6: I'd like to get from the hotel to the restaurant by 10:45. Sentence7: There are quite a few different options you can choose from. Is there any particular type of food you are in the mood for? Sentence8: Unfortunately they do not have any rooms available on Friday. Would you like to try another guest house? Sentence9: Yes, I will need a taxi to take me from the restaurant to the hotel. Could you book one for me? Sentence10: I have reserved you a table for 8 at 10:45 on friday your reference number is 6R8D8J8P Sentence11: Luck is with us tonight! I was able to book the Alexander on Friday for 3 nights and 8 people. The reference number is ZDT7PP0G . Would you like anything else? Sentence12: I need the hotel for 3 nights and for 8 people. Sentence13: Is there another 4 star guest house we can try? Sentence14: No, just somewhere I can get in on Friday, 11:45. Sentence15: You didn't mention how many people and for how many nights you will need a room for, can I have the information? Sentence16: Golden House on 12 Lensfield Road, City Centre has Chinese cuisine and their price range is considered cheap. Would this be a suitable choice or would you like other options? Sentence17: Alexander b &b would suit you. Would you like me to book it? Sentence18: No that is all I needed today, thank you. Sentence19: Unfortunately they are currently booked for that time. Would you like to try a different time? Sentence20: What about an hour earlier? Sentence21: Yes, please book me the room for Friday. Sentence22: Great! Let us know if you need anything else. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System