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: No that is it. Thank you. Sentence2: Let's try the centre of town please Sentence3: I'd like to attend an architecture related attraction in the centre, do you have anything of that nature? Sentence4: Thank you, I would like to book it for 8 people for 2 nights starting from friday Sentence5: Thanks. I am also looking for an expensive place to stay. I'll need free wifi. Sentence6: The all saints church is in the centre of town. Would you like the address? Sentence7: I'm unable to find any places to stay that match those specifications. Is there anything you'd be willing to change about where you want to stay? Sentence8: University Arms Hotel is a great hotel in the centre in the expensive price range. Would you like to make a reservation? Sentence9: Do it also have free parking? Sentence10: Yes that would be great. Can you also give me the phone number and entrance fee? Thanks Sentence11: The address is jesus lane. Sentence12: in the north, please. Sentence13: Yes it does include free parking. Sentence14: the phone number is 01223452587 and admission is free! Sentence15: how about something in the north? Sentence16: Okay, what area would you like to stay in? Sentence17: Great, thank you so much for your help today. Sentence18: Booking was successful. Reference number is : FN6WAJPB . Is there anything else I can do for you? Sentence19: I have nothing in the north. Can I try something else? Sentence20: Thanks for letting us assist you today! Enjoy your visit! Goodbye. Sentence21: What is the address? Sentence22: You're welcome. Is there anything else that I can do for you today? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User