customer: Hi. I'm Scott Clark. 
 agent: Hello, how can I assist you today? 
 customer: I am a science student, I have to visit science lab in Charlotte for my project work. Can you please book a flight ticket from DCA to CLT? 
 agent: Sure, could you please help me by providing your dates please? 
 customer: I want to go on 03/26 to 03/28. 
 agent: We found a flight on your provided details in Hawaiian airline. Do you like me to proceed with that? 
 customer: The flight price should not exceed 200. 
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 customer: Please book my ticket. 
 agent: Ok, your ticket is booked with the flight number 1028. 
 customer: Thank you for your help. 
 agent: It's my pleasure.
agent: Ok, the price of the flight is only 100.