customer: Hello, I am Brandon Miller. 
 agent: Hello, How can I assist you? 
 customer: As I got an invitation to give a seminar on Secretaries' Day, I am planning to go to LAS. 
 agent: Ok, Can you provide the travelling details? 
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 agent: Ok, Wait a while, I will check and get back to you. 
 customer: Sure. 
 agent: There is a flight according to your details. 
 customer: Ok. 
 agent: Flight number:1016, Airline: Frontier, Price:100 with one connection. Shall I go with the booking? 
 customer: Ok, you can proceed to book. 
 agent: OK, Your ticket has been reserved. 
 customer: Ok, thanks for booking. 
 agent: Thank you have a great day.
customer: I want to depart from IAD on 04/12 and return date can be on 04/14.