You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: Myself Scott Green from Phoenix. I want to go to Boston next week for my film shooting purpose, can you please book a flight ticket for me?

ASSISTANT: Sure, I will assist you about your flight ticket booking Green.

USER: Thank you.

ASSISTANT: Can you please provide your scheduled dates of your journey?

USER: I want to take off on 04/13 and book my return ticket also on 04/15.

ASSISTANT: Please provide your from and to airport codes of your journey?

USER: I want to fly from PHX and destination airport is BOS.

ASSISTANT: Hold on for sometime, in order to find a suitable flight for your journey.

USER: Ok.

ASSISTANT: I regret for the inconvenience, there are no flights which can travel to your region.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Most welcome, thank you for reaching us.