Hello.
user
Hello, how can I aid you?
assistant
I am planning to visit Houston to meet my uncle, can you please book me a ticket from DCA to HOU?
user
Sure, can you share your trip dates?
assistant
My planned dates of journey are from Feb 18 to Feb 20.
user
Do you have any preferences?
assistant
I need a ticket in economy class for this trip.
user
May I know your name?
assistant
My name is Kathleen Clark.
user
Sorry, there is no economy class available on your given dates.
assistant
Ok, not an issue. I will find any alternate for this trip.
user
Thank you for reaching us.
assistant
Anyways, thank you for providing information.
user