You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I'm Jessica Gonzalez. I am planning to attend business meeting at PHX, can you please help me with booking a flight ticket from PHL?

ASSISTANT: Please help me with your dates?

USER: Sure, I would like to take off on 12/04 and return back on 12/06.

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

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Most welcome.