You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am here to book a ticket from Chicago. Can you find any flights available to Charlotte?

ASSISTANT: Sure, can I know your name please?

USER: My name is Janet Green.

ASSISTANT: May I know your dates of travel?

USER: I would like to travel on dates 09/15 and 09/17.

ASSISTANT: Can you provide the airport codes please?

USER: The respective airport codes are ORD and CLT.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: There is a flight for you in UA airline with price 300. Shall I proceed in booking?

USER: Yes, please book it.

ASSISTANT: Your ticket has been booked with flight number 1024.

USER: Thank you for helping me out.

ASSISTANT: You are welcome.