You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you?

USER: I am Katherine Lewis. I would like to attend a Renaissance Fair at Charlotte. Can you help me in booking a ticket with price limit 500?

ASSISTANT: Sure, I can here to help you.

USER: Thank you.

ASSISTANT: Provide me your travelling dates.

USER: My travelling dates are from 06/01 to 06/03.

ASSISTANT: Can I know your airport codes?

USER: My airport codes are from EWR to CLT.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time.

USER: Ok.

ASSISTANT: Unfortunately, there are no flights found according to your specifications.

USER: Not a problem.

ASSISTANT: Thanks for choosing us.

USER: Thank you for quick information.