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: Thank you. Could you help me find a museum that is in the east? Sentence2: Their phone number is 01223295264, and postcode is cb15dh. Sentence3: Sorry there are no records matching your request. Would you like to change your request? Sentence4: Okay. Your booking was successful. Your reference number is 42WW4454 . The table will be reserved for 15 minutes. Sentence5: Thank you so much. Do you know if there is an admission charge? Sentence6: You too! Thanks. Sentence7: You are very welcome. Sentence8: I have 5 different ones. 4 are in the centre of town and 1 is in the south. Do you have a preference? Sentence9: Thank you for allowing me to help you, have a great day. Sentence10: Great news, admission is free for that museum. Anything else I can help you with today? Sentence11: I'm looking for a restaurant recommendation. Sentence12: I would love to assist. Do you have a price range in mind? Sentence13: No, I just need a resrvation for 7 people at 17:45 on monday. Sentence14: Yes, you might want to try the gallery at twelve a high street in fulbourn. Sentence15: Yes, I am looking for a expensive scottish restaurant. Sentence16: Can you also tell me the phone number and postcode? Sentence17: Okay, let's try for an expensive Italian restaurant instead. Sentence18: Great! Thank you for all your help. Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User