Hello.
user
Hello, How may I help you?
assistant
My name is Timothy White from Houston and I want to book the flight ticket from HOU to DCA. Can you please help me in booking the flight ticket?
user
Sure, May I know your travelling dates?
assistant
My travel dates are 07/10 and 07/12.
user
Do you have any preferences?
assistant
I need a direct flight.
user
Thanks for your details. There are no flights found on your data.
assistant
Sad to hear, anyway thank you for the information.
user
Thank you.
assistant