You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

[EX Q]: Sentence1: Would you like to book a room at the acorn guest house? It is in the moderate price range like the Hamilton Lodge. Sentence2: Nope. I think that is all I need. Thanks for your help! Sentence3: Yes that will be fine. Sentence4: Your booking was successful. Your reference number is 1WRSIG9U . Is there anything else I can help you with? Sentence5: Happy to help. Have a great day! Good-Bye! Sentence6: I am sorry the booking was unsuccessful,can I help you find another place in the same area? Sentence7: Yes please. I'd like a room for 5 people on Monday for 5 nights. Sentence8: Yes, this guesthouse is open. Do you need help with booking? Sentence9: How about another hotel in the same price range? Sentence10: Howdy! Is the Hamilton Lodge still open? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Are there any with 2 stars that offer free parking? Sentence2: I want to leave by 01:30. Sentence3: We have serveal entertainment attractions. Would you like to try the funky fun house? Sentence4: I will need a taxi to take me from the Funky Fun house to my hotel. Sentence5: I was able to book a taxi for you from Funky Fun House to Ashley Hotel. It is a white BMW and the contact number is 07616230310. Sentence6: I need it to be moderately priced with a 2 star rating. Are either one of them fit this description? Sentence7: Let's go with Ashley. Book that for 8 people for 3 nights starting from saturday. Sentence8: I'm sorry, there has been a mix up. There are two 2 star hotels available, the Ashley and the Lovell Lodge. They are both hotels and have internet and free parking. Sentence9: Yes I am looking for a hotel on the North side of town. I am not needing parking. Sentence10: The number there is 01223304705 and it's on 8 Mercer's Row. Anything else? Sentence11: I'm looking to go someplace in town. Maybe for entertainment. Do you have any recommendations? Sentence12: I would like one without the internet. Sentence13: Yes, there are two guesthouses available with free parking, one with internet and one without. Do you have a preference? Sentence14: I would be happy to help you get a taxi, what time would you like to leave funky fun house? Sentence15: What's the entrance fee? Sentence16: That sounds funky. Sure. Sentence17: Both hotels are moderately priced, but there are no 2 star ratings. Do you want to try a different rating? Sentence18: There are two guesthouses meeting your requirements. Would you prefer the 3 or 4 star one? Sentence19: Ok, I have booked your reservation at the Ashley hotel for 8 people 3 nights starting Saturday, Your confirmation number is P94ETSL1 . Sentence20: It was my pleasure to assist you. Call us again anytime. Have a good day. Sentence21: okay, that should be all! thank you so much for your assistance! Sentence22: I have no information in my system about their entrance fee. You are welcome to call them and see if they can provide you with that detail. Question: Who has spoken the sentence 6? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Hi, I am looking for information on a train. Sentence2: I have two guesthouses. Would you like a cheap one that is a 4 star, or a moderately priced 3 star? Sentence3: I need to book seats for 4 people please, and can I get the reference number for that? Sentence4: Yes, that sounds perfect. I'll need 4 seats. Sentence5: I need a hotel in the west with free parking please. Sentence6: I actually need a guesthouse instead of a hotel, please. Sentence7: Do you care about the price range? I have one cheap and one expensive hotel that fits your current criteria. Sentence8: Great! I found 9 trains that match your requests. I'll be happy to book one if you'll let me know how many tickets you need. Sentence9: Your booking was successful, the total fee is 66 GBP payable at the station . Your reference number is : P6G0S9IT . Is there anything else I can help you with? Sentence10: I'd like to arrive by 10:30 on Thursday, please. Sentence11: First let's verify which train you want. The TR1719 will have you at your destination around 10:09. Sentence12: What time would you like to leave or arrive by? Sentence13: I'd like to go to Cambridge and will be departing from Peterborough. Sentence14: You came to the right place! Where would you like to go? Question: Who has spoken the sentence 4? (A) User (B) System
[EX A]:
Answer: (A) User