You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Amy Lee. I would like to book a ticket to Atlanta for attending  a  concert.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travel dates are Jan 28 and Jan 30.

ASSISTANT: Please provide me the respective airport codes.

USER: My genesis and terminus airport codes are PHX and ATL.

ASSISTANT: Do you have any other specifications?

USER: Preferences would with a single connection and maximum price limit of 5000.

ASSISTANT: Sorry, there are no flights available for your desired dates.

USER: No issue, thank you for the information.

ASSISTANT: Thank you for reaching us.