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 have 4 places that have great indian food. I have 2 moderately priced ones and 2 expensive ones. Do you have a preference? Sentence2: Yes. 3 people at 13:45 on Sunday. Sentence3: That's all I need today. Sentence4: I have the cambridge artworks located at 5 greens road and has free entrance. Sentence5: Sure, how about pipasha restaurant? Sentence6: I can do that - I got you a white honda and the driver can be reached at 07397937480. Will that be all today? Sentence7: Thank you so much for calling. Ring us back if you need anything else. Goodbye. Sentence8: I have made that reservation and your reference number is H5PBYPD0 . Sentence9: Yes I can is there any type of food you're in the mood for and what area would you like? Sentence10: I would like an Indian place in the East of town. Sentence11: Are there any wonderful museums in town? I just need the address of one that you would suggest. Sentence12: I'm looking for a restaurant, can you help? Sentence13: cool I need a cab now and I need to get to the restaurant by the reservation time of course Sentence14: Yes, I'd like one in the moderate price range. Can you select one? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System