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: There are trains every hour starting at 05:40. Travel time is 163 minutes. Is there a time you want to depart or arrive by? How many people are traveling? Sentence2: Not really. What would you recommend? Sentence3: I have a 16:40 departure and the train ID is TR5349. Sentence4: Is there any particular cuisine you have in mind? Sentence5: Okay, sure. The address is 64 Cherry Hinton Road Cherry Hinton. The post code is cb17aa, and the phone number is 01223412299. Do you need anything else? Sentence6: I need the train Id. Sentence7: What information do you want in particular? Sentence8: I sure can, which stations will you be traveling between? Sentence9: Thank you so much. Goodbye. Sentence10: Taj Tandoori is a great place for Indian food. Would you like a reservation? Sentence11: Okay great I am glad I could assist you today. Sentence12: That is all I need. Sentence13: I am looking for an expensive place to eat in the South, Sentence14: What time will it arrive? Sentence15: Have a nice day. Good bye. Sentence16: I don't need a reservation yet. May I have Taj Tandoori's address, postcode, and phone number, please? Sentence17: Yes! Can you help book train tickets? Sentence18: I'm not good at maths so please give me the total travel time too. Sentence19: It will arrive in Cambridge at 19:23. Sentence20: No problem. The travel time is 163 minutes. Is there anything else I can do for you? Sentence21: I's like to depart after 16:15. I just need information, not a booking. Sentence22: I'm going to be headed to Cambridge from Birmingham New Street on Monday. Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System