You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ashley Williams is here.

ASSISTANT: How can I aid you today?

USER: We are planning to visit Levine Museum of the New South located at Charlotte, It includes temporary and permanent exhibits on a range of southern related topics. Can you please avail me in making an airline reservation?

ASSISTANT: Sure. May I know your depart and arrival dates?

USER: My departure date is 07/08 and arrive on 07/11. I intend to return on 07/10.

ASSISTANT: Could you please share your airport codes?

USER: My airport codes are from AZ-PHX to NC-CLT.

ASSISTANT: How much you can afford for this journey?

USER: I can afford upto 500.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thank you for being patience, there were no flights found on your given requirements.

USER: Ok, no worries at all. Thank you for your help.

ASSISTANT: Thank you.