You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I am a model, I have my photo shoot at San Francisco, so please book my ticket from Phoenix.

ASSISTANT: I am here to help you about your flight ticket booking. Could you please provide your planned dates of journey?

USER: My itinerary dates are 08/06 and 08/08.

ASSISTANT: Please provide your respective location codes.

USER: I will be travelling from PHX to SFO.

ASSISTANT: Please provide your name for processing further.

USER: Charles Young here.

ASSISTANT: Sorry to say this Young, I can not provide you a flight which can travel to your region on your planned dates of journey.

USER: No problem, thank you.

ASSISTANT: Most welcome, thank you for choosing our service. Hope you have a nice day.