Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: TR6834 leaves at 11:29 and arrives in Cambridge at 12:07. Does this allow you enough time? Or TR2083 that leaves at 09:29 and arrives in Cambridge at 10:07. Sentence2: From where to cambridge then? Sentence3: City centre is 328a histon road and el shaddai is 41 warkworth street. Sentence4: Alright, what day will you be traveling? There are four trains per day that meet your requirements. Sentence5: Please book me for one for train TR 6834 Sentence6: I would like to leave on friday. Sentence7: Both City Centre North B and B and El Shaddai have free wifi. Would you like to book one of these? Sentence8: I booked you one seat on TR6834 departing Bishops Stortford for Cambridge Friday at 11:29. Reference is MFL4CZTS . Is there anything more today? Sentence9: Thank you so much for your help. Sentence10: Certainly, we have City Centre North B&B in the north and El Shaddai in the centre, both very affordable. Would you like to book one? Sentence11: You are welcome have a great time! Sentence12: Can I just get the address for them please Sentence13: Could you help me find a 0 star lodging with free parking? Sentence14: I want to make sure also, that it is a hotel and includes free wifi Sentence15: Thanks, I also need a train to go to cambridge. Sentence16: I want to leave from bishops stortford and arrive by 12:15. Question: Who has spoken the sentence 10? (A) User (B) System
A:
Answer: (A) User