Hello, I am Cynthia Hall.
user
Hello, how may I help you?
assistant
I would like to travel from Houston to attend a live concert. Can you book a ticket on 12/18?
user
Sure, may I know your return date and airport codes?
assistant
My return date is 12/20. My airport codes are TX - HOU and DC - IAD.
user
Do you need any connection?
assistant
Yes, it is one.
user
Thank you for the information,but unfortunately there is no flight found with your requirements.
assistant
Ok, Thank you for providing information.
user
Thank you for reaching us.
assistant