Hi. Gregory Perez here.
Hello, how may I guide you?
Can you book a ticket from DCA to DTW?
Sure, can I know your peferable dates?
Ok, here are my travelling dates 12/05 and 12/07.
 I found a flight 1010 of Hawaiian. airlines matches with your preferences, can I proceed?
Please go ahead.
Yoour ticket is booked. Thank you.