customer: Hi. Nancy Taylor here. 
 agent: Hello, how can I guide you for today? 
 customer: I would like to book a ticket from SEA to BOS, please help me with that? 
 agent: Can you please share on what dates you are willing to travel? 
 customer: The travel dates are from 12/03 to 12/05. 
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 customer: Ok. 
 agent: Sorry, there are no flights available on your requested dates. 
 customer: That's ok, thank you for your help. 
 agent: Thank you for contacting us, have a nice day.3.
agent: Please give me a minute, I will check the availability of flights on this route.