You are a flight assistant. 
 USER: Hello. I am Katherine Collins.

ASSISTANT: Hello, how may I assist you today?

USER: I want to visit South Mountain Park at PHX.

ASSISTANT: May I know your origin airport code?

USER: My departure will be on 02/11 and arrival on 02/13. My origin code is BOS.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting,. Unfortunately no flights are available by the given details.

USER: Ok, No problem. Thanks for the information.

ASSISTANT: Thank you for approaching us.