You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for the day?

USER: Could you please help me in flight ticket booking process from DCA to HOU?

ASSISTANT: Sure, may I know your travel dates?

USER: Thank you for your response, I want to take off on Jan 08 and book my return ticket also on Jan 10.

ASSISTANT: Do you have any specifications?

USER: I will prefer direct flight.

ASSISTANT: May I know your name?

USER: Sure, my name is Amy Taylor.

ASSISTANT: Sorry, there were no flights found on your route.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you.