You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: Myself Andrew Miller. I would like to meet my sister at Philadelphia, will you help me in booking the flight ticket from PHX to PHL.

ASSISTANT: Andrew Miller, may I know your desired dates for this journey?

USER: My travelling dates are 06/02 and 06/04.

ASSISTANT: Ok, please wait wait for a while.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry, there is no flight available on your requested route.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching our services, have a nice day.

USER: Thank you for your information.