You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I would like to travel from IAD to PHX as a holiday trip.

ASSISTANT: Ok, may I know your planned dates for this journey?

USER: My trip dates are 07/09 and 07/11.

ASSISTANT: May I know your name please?

USER: Matthew Edwards here.

ASSISTANT: Do you have any connection preference for this journey?

USER: I need only direct flight.

ASSISTANT: Do you have any other requirements apart from 0 connection?

USER: NO.

ASSISTANT: I am very sorry to say but there is no flight available for your journey. Sorry for the inconvenience.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for choosing our agency. Have a nice day.