You are a flight assistant. 
 USER: Hello,. I am Amy Phillips.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to Boston with price under 500. Can you help me with it?

ASSISTANT: Sure, please share me your travel dates.

USER: My travel dates are 06/20 to 06/22.

ASSISTANT: May I know your airport codes?

USER: Airport codes are CLT-BOS. Sure.

ASSISTANT: Please wait for a moment, I will check and let you know.

USER: Ok.

ASSISTANT: We found a connecting flight with price 100, flight number 1003. Shall I make the confirmation?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been confirmed with Spirit airline.

USER: Thank you.

ASSISTANT: Thank you for choosing our service, have a great day.