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: I'm looking for information on Broughton house gallery. Sentence2: Yes, I need a train going to cambridge. Sentence3: Sure. Just to confirm, how many seats will you need? Sentence4: Thanks so much, that's all I need today. Sentence5: Of course. What day will you be traveling? Sentence6: I hope you have a great day, goodbye! Sentence7: Okay, what day would you like to travel and where will you be leaving from? Sentence8: I'll be leaving Leicester and I want to be in Cambridge by 11:30, please. Sentence9: You will arrive at 10:54 the reference number is 69luuzq7 Sentence10: Sunday,can you book it for me and I need a reference number,please Sentence11: Is the cb11ln the postcode? Sentence12: Yes, that's the postcode. Is there anything else I can assist you with? Sentence13: Certainly! It's a museum in the centre at 98 king street cb11ln with free entrance. Their phone number is 01223314960. May I help find anything else? Sentence14: 5, please. Include the reference number. Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System