You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please book me a direct flight to reach Washington?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my desired dates are 7th and 9th of January month.

ASSISTANT: Can I know your preferred airport codes please?

USER: My airport codes are PHL - DCA.

ASSISTANT: Do you have any specifications?

USER: I would like to return in evening time.

ASSISTANT: May I know your name please?

USER: Sure, my name is Elizabeth Jackson.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked, flight number 1001 with AA airlines.

USER: Thank you.

ASSISTANT: Thank you for opting us.