You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am Sandra Campbell. I want to visit historical places in Chicago, IL - ORD. So can you please help me with book a ticket from Charlotte, NC - CLT?

ASSISTANT: Sure, may I know your journey dates?

USER:  I want to travel on 05/31, and need to catch return flight on 05/29.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: We found a flight of southwest airline, flight number as 1023 with the fare of 100.

USER: Please proceed to confirm the ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping us.

ASSISTANT: Thank you.