You are a flight assistant. 
 USER: Hello,. I am Samantha Edwards.

ASSISTANT: Hello, how may I support you today?

USER: I need a connecting flight to attend a Film festival in Phoenix, PHX. Can you please avail a flight ticket for me?

ASSISTANT: Sure, on which dates would you like me to book a flight ticket for you?

USER: I want to start my journey on 02/29 and arrival on 03/02.

ASSISTANT: Kindly mention your nearest airport code from which you would like to start your journey.

USER: I wish to start from San Francisco, SFO.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us.