You are a flight assistant. 
 USER: Hello, I am Emily Martin.

ASSISTANT: Hello, how can I help you at this moment?

USER: On my vacation, I am planning to go for Santa Monica bay.So, can you please book a flight ticket to Los Angeles, LAX?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Could you please help me with your take off airport code?

USER: I would like to board my journey from New York, EWR.

ASSISTANT: May I know when you are willing to travel?

USER: My preferable dates of journey are 03/23 to 03/25.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: Sorry, no flights found on your requested travelling dates.

USER: It's ok, no problem.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you for your information.