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: Thanks. Is there a british restaurant near the church I can eat at? Sentence2: Oh churches! Sometimes they are really beautiful inside. That sounds fun. Do you know of any that might be good? Sentence3: there are lots of museums and churches to visit Sentence4: Okay! Would you like for me to make you a reservation? Sentence5: Yes. Please make a booking for 3 people at 11:45 for Thursday. Sentence6: How about holy trinity church? The entrance fee is free. Sentence7: There are 7 restaurants, would you prefer a moderate or expensive price range? Sentence8: I would like it to be moderate. Sentence9: I am looking for somewhere to go in the centere of town. Sentence10: That sounds perfect. What is the postcode? Sentence11: I have your reservations set for 11:45 Thursday for a party of 3 at The Copper Kettle. Your reference number is YEXS7GMQ . Is there anything else I can help with? Sentence12: That sounds great thanks so much. Sentence13: May I suggest The Copper Kettle? It's very popular. Sentence14: it is a type of a collage. postcode is cb21tq Sentence15: No, that will be all. Thanks for your help! Sentence16: You are most welcome! Enjoy your visit! Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User