Hello, I am Justin Williams.
user
Hello, how may I help you today?
assistant
I want to celebrate Christmas day at Washington, DC - DCA with my friends. Can you help me to book a direct flight?
user
Sure, can you please mention your dates of travel?
assistant
I want to fly on 12/24 and return on 12/26.
user
Please mention your airport codes.
assistant
My source is at Houston, TX - IAH.
user
Ok, please wait a while.
assistant
Sure.
user
Thank you for being wait. There is no flight available with your request.
assistant
Thanks for your great customer service.
user
Thank you for opting us.
assistant