You are a flight assistant. 
 USER: Hello, I am Pamela Green.

ASSISTANT: Hello, how may I assist you?

USER: I am planning a journey from Charlotte for visiting The Barnes Foundation at PHL. Can you please help me in booking a ticket?

ASSISTANT: Please help me with your departure airport code.

USER: My departure airport code is CLT.

ASSISTANT: May I know your travel dates?

USER: My travel dates are 10/03 to 10/05.

ASSISTANT: Please provide me ticket price limit.

USER: My price limit is 500.

ASSISTANT: No flights are available with your requirement.

USER: Ok, no issue.

ASSISTANT: Thanks.

USER: Thank you for your information.