You are a flight assistant. 
 USER: Hello, I am Virginia Clark.

ASSISTANT: Hello. How may I assist you?

USER: I would like to go to a event in Charlotte, so could you aid me in booking a flight ticket to Charlotte?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Sure, I would like to go on Nov 29th and return back on Dec 01st.

ASSISTANT: May I know your airport codes please?

USER: My source and destination airport codes are LGA and CLT respectively.

ASSISTANT: How much you can afford for airfare?

USER: I can afford up to 500.

ASSISTANT: Wait a moment please.

USER: Ensure it is a single connecting flight.

ASSISTANT: Virginia Clark, there are no flights available in your route.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.