customer: Hi. 
 agent: Hello, how may I help you? 
 customer: Jack Walker is here. I have a plan to attend food festival with my friend's in PHL, will you please assist me in making an airline reservation from SEA? 
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 customer: I am planning to travel on Apr 4th and return on Apr 6th. 
 agent: Do you have any other requirements? 
 customer: I need a direct flight. I prefer to travel in an economy class. 
 agent: Sorry Jack, there is no direct flight available. 
 customer: Ok, not an issue. Thank you. 
 agent: Most welcome.
agent: On which dates you are planning to travel?