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: There are 3 hotels in the west. Two are cheap and one is expensive. Do you have a price preference? Sentence2: please find me a good cinema to go Sentence3: There are 2. Would you like to stay in a guesthouse, or in a hotel? Sentence4: They have a very flexible schedule. Please give me a day of the week and I will look for you. Sentence5: for how many days and starting when do i book? Sentence6: Let's go with the cheap one. Sentence7: The cambridge belfry is in the cheap range, with 4 star rating has internet and parking. Should I book a room for you? Sentence8: One person, please. Sentence9: Can I have the postcode and phone number? Sentence10: Yes, that would be wonderful. Sentence11: A hotel would be perfect! Sentence12: What is the price range? Sentence13: how many people should i book for? Sentence14: I don't actually need to book a room right now, can you just give me the price range that is in? Sentence15: What days are available? Sentence16: We have 21 hotels and guesthouses ranked 4 stars. Do you have a particular area of the city you'd like to stay in? Sentence17: I would like something in the west. It doesn't need to have internet. Sentence18: Sure. The postcode is CB11PS and the phone number is 08712240240. Sentence19: Ok. So that is the cambridge belfry. Should I make a reservation for you? Sentence20: As I mentioned before, the Cambridge Belfry is in the cheap range. Will there be anything else for you today? Sentence21: I'm also looking for a place to stay in. Can you find me a 4 star place? Sentence22: what about vue cinema? It's located in the centre. Sentence23: For 1 day Sentence24: No. I believe that is all. Thank you for your assistance. Sentence25: Thank you for allowing me to assist you. Feel free to call back for more information. Sentence26: What day would you like to check in? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User