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: Thank you, that was all I needed today. Goodbye. Sentence2: how about the oak bistro? It looks lovely Sentence3: departure from Cambridge. Sentence4: Can you also find me a train that goes to Peterborough on Wednesday? I need to arrive by 10:45. Sentence5: Ok, that sounds good, I need to book a table at 18:00 on Tuesday for 6 people, please. Sentence6: What time would you like to leave at? I have 5 trains leaving between 5:06 and 7:06. Sentence7: I was thinking somewhere in the centre of town. Sentence8: Hi. Can you help me find a moderately priced restaurant? Sentence9: The TR0467 leaves at 9:34 and arrives at 10:24. The cost is 16.50 pounds. Does this work for you? Sentence10: Your table is reserved, reference #9SJWCXZA . Can I be of any further assistance today? Sentence11: where are you travelling from? Sentence12: there are a variety of moderately priced restaurant in what area do you prefer? Sentence13: Thank you for using our services. Have a great day! Sentence14: Which train arrives closest to 10:45? I don't want to wait around too long after I arrive. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System