customer: Hi. 
 agent: Hello, how may I aid you today from my end? 
 customer: Please help me in booking a ticket from LAX to BOS. 
 agent: Sure, I am here to help out. Please provide me your trip dates. 
 customer: My trip dates are from 01/11 to 01/13. 
 agent: May I know your name to proceed further? 
 customer: I am Rebecca Carter. 
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 customer: Ok, no problem. Thank you. 
 agent: Thank you for reaching us.
agent: I regret to inform you that there is no flight in your route. Sorry for inconvenience caused.