You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Myself Nicholas White.

ASSISTANT: Yes, White.

USER: I would like to attend a meeting in National Center at Atlanta. Could you please book a ticket from PHL to PHX?

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: Sure, my journey dates are 12/31 and 01/02.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait for your response.

ASSISTANT: UA airlines is having a flight on that route with 2 connections, is that ok for you?

USER: Can you please check for the direct flight?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to inform you that there are no direct flights available for you on those dates.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for choosing us, have a great day.