You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Can you please check a direct flight from PHX to CLT?

ASSISTANT: How can I help you today?

USER: Please help me in ticket booking.

ASSISTANT: Sure, I am here to help you with that flight ticket booking. Can you please provide me your travel dates?

USER: My travel dates are from 12/03 to 12/05.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: May I know your name please?

USER: Myself Nicholas Walker.

ASSISTANT: Sorry Walker, no direct flight is available for you on your route.

USER: That's fine, thank you.