customer: Hello. 
 agent: Hello. How can I assist you today? 
 customer: I am Brian Jackson, want to fly Orlando, FL - MCO with my friends this weekend. 
 agent: Ok, could you please provide your preferable travel dates? 
 customer: My preferable dates of travel are 07/22 and 07/24. 
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 customer: Book a flight ticket from Seattle, WA - SEA. 
 agent: Ok, let me check for the availability of flight. 
 customer: Ok. 
 agent: Brian, there is a flight available with price 100 and the airline is Spirit. Would you like me to proceed the booking? 
 customer: Yes, proceed for the booking. 
 agent: Your booking is confirmed with 1006 airline. 
 customer: Thank you for the booking. 
 agent: You are welcome. Thank you for contacting us.
agent: Can you please provide Source airport code?