customer: Hello. 
 agent: Hello, how can I aid you today? 
 customer: Could you please help me in booking a ticket from BOS to SFO where I have a meeting to attend. 
 agent: Can you please let me know your travelling dates? 
 customer: My itinerary travel dates are as follows Jan 10 and Jan 12. 
 agent: Do you have any class preference? 
 customer: I would like to board a single connecting flight. 
 agent: May I know your name? 
 customer: Regarding my time concern, depart should be in the evening and return in the evening too. 
 agent: Is there any other specifications for your journey? 
 customer: No. My name is Ronald Davis. 
 agent: Ok, please wait a moment. 
 __ 
 agent: Sorry Ronald Davis, based on you required specifications we haven't found any flights in airline database. 
 customer: No issue, thank you for the information. 
 agent: Thanks for reaching us.
customer: Sure.