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 got five. any specific area you prefer? Sentence2: Sure thing, I will work on this and be back with you shortly. Sentence3: Are there any multiple sports arenas? Sentence4: I have booked your reservation. The reference number is UJEGRKNM . Is there anything else I can help you with? Sentence5: Unfortunately, I can't book anything without some more information from you. I would need to know the day and time you'd like to dine, as well as the number of people. Sentence6: When you're done working on it please give me a reference number for my records Sentence7: Not in the south. I have them in other areas of the city. Would you be interested in another area or another type of attraction in the south? Sentence8: Zizzi Cambridge sounds good, can you book that please? Sentence9: Centre of town please. I need to book a table for 7 people at 17:45 on Thuesday. Sentence10: Okay, that narrows your choices to three: Pizza Hut City Center, Ask, and Zizzi Cambridge. Any preference? Sentence11: I need a place to go in the south. Sentence12: I need a table for 7 people at 17:45 on Thursday. Sentence13: Well, that is disappointing but maybe we could try italian. Sentence14: I have not located any restaurants that serve modern global food, would you like me to locate a restaurant that serves a different food type? Sentence15: The south is lively with cinema, entertainments, a museum, nightclub, parks and theatre. What appeals to you? Sentence16: Hello! I'm looking for a cheap restaurant that serves modern global food. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System