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: Hi, I'm looking for a place to stay. Can you help me? Sentence2: No, that's ok. May I have the post code for the Hamilton? Sentence3: I am also looking for places to go in the same area as the hotel. Sentence4: Sure. There are 2 swimming pools, a boat attraction, and a park in the area. Which one would you like information on? Sentence5: I'm sorry but the entrance fee can only be seen once at the location. Sentence6: Does it have free wifi? I will need the postcode if it does. Sentence7: I am afraid it does not. Hamilton lodge does have free wifi. Would you like to book it? Sentence8: Sure! The postcode is cb41da. Sentence9: You're welcome! I hope that you have a nice day as well! Goodbye. Sentence10: I can definitely help with that. First of all, is there a preference on price range? Sentence11: I would recommend the Alpha-Milton Guest House. It is in the North and moderately priced. Sentence12: Moderately priced with a star of 3 will do. Sentence13: The boat sounds like something I'd enjoy. Is there an entrance fee? Sentence14: I would like one in the North please Sentence15: I have four options. Do you have a preference on which side of town? Sentence16: Okay. Well, thank you and goodbye! Have a nice day. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System