You are a flight assistant. 
 USER: Hi,. I am Ryan Jackson.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket to attend Women's Fashion Week in Philadelphia, PA - PHL. Can you please hold me a flight ticket from Phoenix, AZ - PHX?

ASSISTANT: Sure, please share your planned trip dates?

USER: My journey dates are from 02/12 to 02/14.

ASSISTANT: Ok, any other requirements to be met?

USER: Yes, I need a direct flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.