customer: Hi. 
 agent: Hello. How can I assist you? 
 customer: I am Katherine Davis. Can you help me to book a flight from DFW to SEA? 
 agent: Sure, can I know the travel dates please? 
 customer: My journey dates are 05/23 and 05/25. 
 agent: Ok, wait a moment please. 
 customer: Ok, please check. 
 agent: There is a flight in Delta airline with price 100, can I book it? 
 customer: Proceed with booking. 
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 customer: Thank you. 
 agent: You are welcome.
agent: Your ticket has been booked with flight number 1006.