Hello. I am David Nelson.
Hello, how can I assist you?
 I have a conference at Boston University in MA-BOS. Can you book a ticket from CO-DEN?
Sure, when are you planning to travel?
 My travel dates are 02/05 and 02/07.
Please provide your specifications.
I need a connecting flight within 500 range.
Delta airlines with single connection and price is 100 of 1018 flight. Shall I proceed?
Ok, you can proceed further.
Your ticket has been confirmed.
Thank you for booking.
Thank you.