You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a direct flight from EWR to LAX. Can you please help?

ASSISTANT: Sure, can you please share your depart and return dates?

USER: My depart date is 11/23 and return date is 11/25.

ASSISTANT: May I know your name please?

USER: My name is Alexander Parker.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.