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: Sure, when were you looking to book for? Sentence2: I need to leave the restaurant by 22:15. I will need the contact number and car type as well please. Sentence3: the cambridge belfry is cheap, located in the west, and has 4 stars. It has free internet and parking. Sentence4: The car type is a white skoda and the contact number is 07572111702. Will that be all? Sentence5: What time would you like the taxi to arrive? Sentence6: What about the Cambridge Chop House? It is located in the centre of town and has expensive food. Sentence7: I'm departing from the cambridge belfry and heading to the cambridge chop house. Sentence8: The Cambridge Chop House serves British cuisine and is located at 1 Kings Parade with a postcode of cb21sj. Could I make a reservation for you? Sentence9: I'm looking for information on the cambridge belfry hotel. Sentence10: Please make a taxi reservation for me. Sentence11: You're welcome. Thank you very much for using our service. Sentence12: That is all, thank you. I got all the information that I need. Thank you and have a good day. Sentence13: I'd be happy to assist you, but I will need some more information. Where are you departing from and when would you like to leave? Sentence14: I'm sorry i don't need that booked. Rather i need information on a place to dine. Preferably expensive and in the centre of town. Sentence15: Sure that sounds great! Can you please give me their address, postcode and what type of food do they serve? Sentence16: Can you book that for me? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System