You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Help me in booking a flight from LAX to OAK?

ASSISTANT: Please share your trip dates?

USER: I like to travel on Feb 22 to 24.

ASSISTANT: Do you have any connecting limit preferences?

USER: No.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Christine Adams.

ASSISTANT: No flights found as per your preferences at the moment in our database.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.