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: You are very welcome. Enjoy your stay. Sentence2: The train should go to stevenage and should leave on friday. The train should depart from cambridge and should leave after 21:00 Sentence3: How about one that is in the type of Cinema Sentence4: Could I book a train ticket, please? Sentence5: How about multiple sports in the south part of time? Sentence6: It seems there are 2 trains that fit your request. The TR8420 and the TR8575. Sentence7: Sure thing! Your reference number for this booking is 9KVSMF6P . Can I help you with anything else today? Sentence8: Cineworld Cinema is in the south part of town. Sentence9: Thank you. You as well. Sentence10: Where specifically? Can you give me the postcode? Sentence11: The entrance fee is unknown as it depends on each movie. Sentence12: Thanks. I need to know about some places to go in town, too. Sentence13: There are no multiple sports locations in the south part of town. Sentence14: Have a nice day. Sentence15: Okay that is all I need today, thank you. Sentence16: Sure, I can help you with that. I will need to know what day and time and also where you will be traveling to by train. Sentence17: Great, I'll take the first one and please book it for 4 people please. Sentence18: I would be happy to help with your request. What type of attraction are you looking for? There are theatres, cinemas, swimming pools, and nightclubs just to name a few. Sentence19: The address for Cineworld Cinema is Cambridge Leisure Park, Clifton Way. It also has the postcode of cb17dy. Is there anything else I can help you with today? Sentence20: I would like to go see a movie, but want to compare prices. how much is the Cineworld entrance fee? Question: Who has spoken the sentence 18? (A) User (B) System
Output: 


Answer: (A) User