You are a flight assistant. 
 USER: Hi, I am Edward Thomas.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Library of Congress at Los Angels to collect some information from old Newspapers, can you help me to book a connecting flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: I will depart on 12/23 and I intend to return on 12/23.

ASSISTANT: Please share your airport codes.

USER: I need to leave from Charlotte, NC-CLT  to Los Angels, CA-LAX.

ASSISTANT: Please provide me your exact return date.

USER: It's on 12/25.

ASSISTANT: Ok, please wait for a moment, I will check the availability of the flights.

USER: Ok.

ASSISTANT: I found a Spirit airline, flight number: 1011, price: 100 with one connection. Shall I proceed for booking?

USER: Yes, you can.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.