customer: Hello. 
 agent: Hello. How can I assist you? 
 customer: I'm Daniel White. I am planning to attend convocation meeting at DEN, can you please help me with booking a flight ticket from SFO? 
 agent: Sure, can I know you travel dates? 
 customer: Sure, I would like to take off on 05/11 and return back on 05/13. 
 agent: Please give me a minute. 
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 agent: Daniel, there is no flight available on your requested dates. 
 customer: Ok, no issues. Thank you for the information. 
 agent: You are welcome.
customer: Ok, but please make sure that the connection limit is 0.