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: Okay! How about Golden Wok? Would you like a reservation? Sentence2: There are nine guest houses that fit your criteria. Are you interested in a particular area of town? Sentence3: I have 4 to choose from. Three are in the centre of town and 1 is in the north. Do you have a preference? Sentence4: I think everyone likes Chinese food. Sentence5: Booking was successful. Reference number is : FUHPBZA4 . Can I help with anything else today? Sentence6: i am also looking for a restaurant for that same day Sentence7: it should be on the moderate price range Sentence8: Yes for 18:00 on Wednesday for 8 people please. Sentence9: May I suggest Acorn Guesthouse? It fits all your criteria. Would you like me to reserve you any rooms? Sentence10: That sounds great. I need a reservation for 8 people please. Sentence11: When will you be arriving and how many days would you like to stay? Sentence12: You too and glad I could help. Sentence13: I'd like to book for 4 nights starting on wednesday, please. Sentence14: Enjoy your dinner. Sentence15: Thank you! That is all I need. Sentence16: Have a great day! Sentence17: yes north will be fine with me Sentence18: Thanks for asking. Moderate suite my pocketbook best. Sentence19: Okay, you got it! The reference number for your reservation is 96EQ4JSI Sentence20: What price range would you like? Sentence21: Sure, what type of food are you looking for? Sentence22: There are 19 hotels. Was there a price range you are looking for? Sentence23: Please find me a hotel in cambridge with 4 star rating and free parking. Sentence24: Let's do the one in the north, by the hotel. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User