You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I assist you?

USER: Please book a ticket to Atlanta, ATL from Phoenix, PHX.

ASSISTANT: Sure, Please help me with your travel dates.

USER: I want to travel on 12/30 and intend to return on 01/01.

ASSISTANT: May I know your name?

USER: My name is Edward White.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.