You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I am George Martin. I want to visit AZ-PHX to give surprise for my son-in-law on his birthday.

ASSISTANT: Surely, I will help you. May I know the destination code?

USER: I will depart from PA-PHL.

ASSISTANT: Please help me with your journey dates.

USER: My travelling dates are 09/30 and 10/02.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, thank you for providing information.

ASSISTANT: Thank you for reaching us.