You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am a singer, I have to take part in a contest at Orlando. So please book my ticket from Los Angeles.

ASSISTANT: Sure, may I know your planned travel dates please?

USER: I will be leaving on 03/31 and returning on 04/02.

ASSISTANT: Can you please share your source and destination airport codes?

USER: I will depart from LAX and land at MCO.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: No problem, thank you.

ASSISTANT: May I know your good name please?

USER: Charles Parker here.

ASSISTANT: Thank you.