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: I would like to book a table there. Sentence2: Thanks! I'm also looking to stay at a hotel called Lovell Lodge, can you help me with that? Sentence3: Yes for 6 people, 3 nights on Saturday. Sentence4: I want to find a place to eat Chinese in the cheap price range. Sentence5: Thanks you and goodbye. Sentence6: Not today, can you recommend one of them to me? Sentence7: The Lovell Lodge is a moderately priced 2 star hotel in the north part of town. Would you like me to book it for you? Sentence8: That is all I need today. Just the room booked. Sentence9: No that was all I needed thank you so much. Sentence10: I have 3 chinese restaurants located in city centre that meet your price range request. Can I book one for you? Sentence11: Booking was successful. Reference number is : WWYPAB14 . Is there anything else I can assist with? Sentence12: i recomend golden house. it is in the centre in 12 lensfield road city centre. can i give you the address Sentence13: I am very sorry, the system for booking hotel rooms seems to be down. Can I do anything else for you today? Sentence14: book a table for 6 people at 17:00 on saturday and give me reference number Sentence15: For what time? Sentence16: The reference number for you reservation is BCYNHP5W . Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System