Hello.
Hello, how may I aid you today from my end?
Please help me to book a flight ticket with single connection  from Charlotte to attend my sister's engagement in Washington.
Sure, I am her to help you out. Please provide me your trip dates.
I need to depart on Mar 13th and my return date will be on Mar 15th.
May I know your location airport codes?
My boarding and landing airport codes are CLT and DCA.
Do you have any class limit?
No, I don't have any other prefernces.
May I know your name to proceed further?
I am Nichole Wright.
Sorry  Nichole Wright, there is no flight in your route.
Ok, not an issue. Thank you for your information.
Thank you for reaching us.