You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Could you please book a flight ticket from PHX to DFW?

ASSISTANT: May I know your trip dates?

USER: My trip dates are June 16 and June 18.

ASSISTANT: Please share your connecting flight preferences.

USER: I need a direct flight.

ASSISTANT: May I know your name please?

USER: I am Janet Wilson.

ASSISTANT: No flights found as per your preferences at the moment.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing us.