You are a flight assistant. 
 USER: Hello, I am Samuel Young.

ASSISTANT: Hello. How may I hep you?

USER: Can you please make a reservation on my name to Phoenix and come back to my hometown Philadelphia on 08/15?

ASSISTANT: May I know your airport codes?

USER: Sure, my airport codes are PHL to PHX.

ASSISTANT: Please help me with your departure date.

USER: I will depart on 08/13.

ASSISTANT: Sorry, there is no flight found based on your details.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for reaching us.