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

Ex Input:
Sentence1: The address of the Nirala is 7 Milton Road Chesterton at the cb1uy postcode. Their number is 01223360966. Sentence2: Then may I suggest the a and b guest house? Sentence3: I want the cheap one. Sentence4: royal spice it is. Shall book it for you ? Sentence5: I also will need a taxi to pick me up at the hotel and get me to the restaurant by 02:15. Sentence6: Booking was successful your ref number is 1R8GSLHI, anything else today? Sentence7: On second thought, I'd like to go with Nirala? My friends want to try something a little more moderately priced. Can you give me the postcode, address and phone? Sentence8: What area would you like it to be in? Sentence9: Goodbye, enjoy your stay Sentence10: You have two options, The Nirala is moderately priced, royal price is cheap, any preference? Sentence11: I don't have a preference for what area, I do however want free WiFi. I would also like to stay in a guesthouse. Sentence12: The guesthouse is located on the east side at 124 tenison road. I am trying to book it but the system must be busy. I'll try again in a minute. Sentence13: Thanks that will be all for today. Goodbye. Sentence14: Yes, I'd like to find an Indian restaurant in the north please. Sentence15: I have booked grey volkswagen with contact number 07588046247. Anything else I can be of help? Sentence16: yes can you book it for 7 people and 3 nights starting from thursday ? Sentence17: I am looking to stay at a 4 star rated place in the moderate price range. Sentence18: Please try again Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: I do not have all of that information at this time. Can I talk to you again when I know more? Sentence2: I am looking for a hotel with free parking in the North. Sentence3: Okay. Please help me book this guesthouse. Sentence4: Yes that is all right. Sentence5: Yep there are 5 guesthouses. Do you wanna just try acorn guest house? Sentence6: Are any of those 11 guesthouses? Sentence7: Does it offer free wifi? Sentence8: It's my pleasure. Have a nice trip! Sentence9: What day, number of nights, and number of people would you like to book for? Sentence10: Thank you for your help! Sentence11: Yes, it does have internet. Sentence12: There are 11 hotels that meet your needs. Would you like to narrow them down by price range? Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Perfect. I was curious about how many stars they had. Thanks so much for the information. Sentence2: Sorry, also, I need information on the Alexander Bed and Breakfast. Sentence3: Yes thank you! That is all I needed. Sentence4: Milton county park is in the north side area and their phone number is 01223420060. Their address is Milton county park, Milton and postcode is cb46az with free entrance fee. Sentence5: Thank you for your help. I will. Sentence6: Maybe. How many stars is the hotel rated? Sentence7: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence8: Sure it is a guesthouse in the centre, it is priced cheap with 4 stars, it has internet and free parking. Sentence9: No I need some time to consider my choices. Thank you for your help today. That is all the information I need. Sentence10: Would you like me to book you into alexander bed and breakfast? I will need the details of your stay. Sentence11: It's rated 4 stars. Is there any other information you'd like about the Alexander Bed and Breakfast to make your decision? Sentence12: I am glad I could be of assistance. Have a good day! Sentence13: Hello, I would like information on Milton County Park. Sentence14: Okay. If you need any help with reservations, please give me a call back. Question: Who has spoken the sentence 11? (A) User (B) System

Ex Output:

Answer: (B) System