customer: Hello. 
 agent: Hello. How can I assist you for today? 
 customer: I am Brenda Hill from Washington. I have to go to Denver next week. Can you please book a flight ticket for me? 
 agent: Yes, can you tell me your travelling dates? 
 customer: Thank you for your positive response, I want to take off on 02/17 and please confirm my return ticket also on 02/19. 
 agent: Ok, can I know your nearest airport codes? 
 customer: I would like to fly from IAD and destination airport is DEN. 
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 customer: Ok. 
 agent: Sorry to inform you that there are no flights found on your requested dates. 
 customer: Oh! It's ok no problem, I will contact another airline agency. 
 agent: Thank you for contacting our agency. 
 customer: Thank you for your information.
agent: Hold on for a moment.