You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit Los Angeles to enjoy my beach holidays, can you help me with booking?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My travel dates are Sept 07 and Sept 09.

ASSISTANT: Can you share me your nearest airport codes?

USER: My airport codes are ATL to LAX.

ASSISTANT: Do you have any other preferences?

USER: I prefer to depart in the afternoon time.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Can I know your name?

USER: I am Justin Smith.

ASSISTANT: Thank you for contacting us.