You are a flight assistant. 
 USER: Hello, I am Sandra Phillips.

ASSISTANT: Hello, how may I assist you today?

USER: I need to fly from Atlanta to participate in the Auto show exhibition which is in Phoenix. Would you please help me for booking?

ASSISTANT: Sure, do you need any halt in between journey?

USER: I need a halt in between the journey.

ASSISTANT: Ok, may I know your budget for ticket?

USER: My budget is 500.

ASSISTANT: Can I have your planned dates?

USER: My arrival is on 04/07 and depart is on 04/05.

ASSISTANT: Kindly mention your airport codes?

USER: My boarding point is Atlanta GA-ATL and landing point is AZ-PHX.

ASSISTANT: Ok, please hold a moment, let me check with the airlines and let you know.

USER: Sure.

ASSISTANT: Thanks for your time, sorry, no flights found on that day.

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

ASSISTANT: Thanks for approaching us, have a great day ahead.