customer: Hello. 
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 customer: My name is David Brown. 
 agent: How may I guide you today? 
 customer: I have a meeting to attend at Boston. Can you help me in booking a ticket from OAK to BOS? 
 agent: Sure, I will help you with that. Can you please share your preferable journey dates? 
 customer: My preferred trip dates are 12/10 and 12/12. 
 agent: Please wait for a minute. 
 customer: Ok. 
 agent: I am sorry to say that there is no flight found under your details. 
 customer: Its ok, no issues. Thank you for the information. 
 agent: Thank you for reaching us, have a great day.
agent: Hello.