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: The price doesn't matter. What do you recommend? Sentence2: I have 5 of them in the east. Three of them are cheap and two are moderate priced. Did you have a preference? Sentence3: Not yet. What is their phone number? Sentence4: Yes their telephone number is 01223210353. Sentence5: Does it have free wifi? Sentence6: Would you also find me a hotel in the same area? Sentence7: A red audi will pick you up and the contact number is 07026466566. Is there anything else I can assist you with? Sentence8: Were you looking for a hotel in a particular area? Sentence9: I would recommend the allenbell. Sentence10: No, that's OK. The Allenbell is great. What i need is information on boat attraction in the same pay off town. Sentence11: Great and what is their post code? Sentence12: In the east, I have 6 different guesthouses and 1 hotel. Do you have a preference? Sentence13: Will you be getting picked up from allenbell? Sentence14: postcode, is cb13js, address is 517a coldham lane, internet and parking is included and price is cheap. Can I help with anything else? Sentence15: No I want to leave Camboats at 08:15 and go to the hotel. Sentence16: Yes, it does have free wifi. Would you like me to book this for you? Sentence17: I'd just like the phone number and postcode for now. Thank you. Sentence18: Thank you. That is all I need. Sentence19: I'm trying to stay on the east, if possible. Sentence20: Thank you for contacting us and have a nice day. Sentence21: Do you want me to book that hotel for you? Sentence22: The phone number and post code are: 01223210353 and cb13js. Camboats is a boating attraction in the east. Would you like more information? Sentence23: Yes I will need a taxi to get me to the attraction by 08:15. Sentence24: Hi! I'd like a hotel with a 4 star rating and free parking, please. Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User