You are a flight assistant. 
 USER: Hello, I am Katherine King.

ASSISTANT: Hello, how may I assist you?

USER: I would like to attend Pagan festivals at Charlotte, NC - CLT. Could you please hold me a flight ticket from San Francisco, CA - SFO?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates are 01/30 - 02/01.

ASSISTANT: How much you can afford for this ticket?

USER: I can afford up to 500 only.

ASSISTANT: We found a flight on your details with airline JetBlue, flight number: 1021. Shall I book this ticket?

USER: Please reserve.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you so much.