Hi.
user
Hello.
assistant
I am David Martin.
user
How can I aid you at this moment, David Martin?
assistant
I want to book a flight ticket  to participate in a food festival at AZ-PHX.Can you help me with this?
user
Sure, we are here to help you. When would you like to start your journey?
assistant
 I would like to start on 05/29 .
user
From where you are heading?
assistant
PHL will be my boarding airport code.
user
Your return date please?
assistant
My return will be on 05/31.
user
Thanks for your details. Sorry, no flights are available in your route.
assistant
No issue.
user
Thank you for approaching us.
assistant
Thank you for the information.
user
Have a pleasant day.
assistant