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: Can I please get their phone number and postcode? Sentence2: Your room at the Express by Holiday Inn Cambridge is all set up for Friday. The reference is 7F6ZIHSZ . Is there anything else I can help you with today? Sentence3: Thanks for that information. What area are you looking to stay in? Sentence4: Thank you! I am also looking for a place to go in town. I'm thinking a college in the centre. Sentence5: I hope you enjoy your time in Cambridge! Sentence6: The express by holiday inn cambridge is located in the east and meet your criteria. Shall I book you a room? Sentence7: Okay I've got a white Honda booked for you to pick you up at 2:45 and take you back to your hotel, their number is 07078899267 Sentence8: For how many people? Sentence9: Christ's College is located in the centre at saint andrew's street. Sentence10: And how many nights? Sentence11: The area doesn't matter I would like an expensive hotel if you can find one. Sentence12: Yes, please book me a room for friday. Sentence13: Certainly, we have many fine guest houses and hotels in Cambridge. Is there anything specific you were looking for, to help narrow it down? Sentence14: Thank you. That is all I need. Sentence15: Hi, can you give me some information on places to stay for my upcoming trip? Sentence16: I need it for 2 people please. Sentence17: 5 nights please. And I would need the reference number also. Sentence18: Their phone number is 01223334900. The postcode is cb23bu. Sentence19: Thanks! I'm going to hanging out at the college late tonight, could you get me a taxi back to the hotel at 2:45? Sentence20: I'm looking for a 2 star hotel with free wifi. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User