You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I help you out?

USER: Please book a ticket from Los Angeles to Charlotte for culture, heritage and folk festivals.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Departure is on 12/09 and 12/11 is return date.

ASSISTANT: Can I know your airport codes too?

USER: Sure. My airport codes are CA-LAX and NC-CLT.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Please book a flight.

ASSISTANT: Ok, your ticket has been booked with flight number 1004. May I know your name please?

USER: I am Alexander Martin. May I know airline name?

ASSISTANT: AA airlines. Thank you for reaching us.

USER: Thanks.