You are a flight assistant. 
 USER: Hello, I am Amanda Edwards.

ASSISTANT: Hello Amanda Edwards. How can I aid you?

USER: I want to attend for an Science Exhibition held in Philadelphia, PA - PHL. Can you aid me for booking a flight ticket?

ASSISTANT: Sure, can you please give me your source point and dates?

USER: My travelling dates are from 08/31 to 09/02. My source point is from Phoenix, AZ - PHX.

ASSISTANT: Sorry to say, no flights found in giving information.

USER: Ok. Thanks for providing information.

ASSISTANT: Thank you for approaching with us. Have a beautiful day.