You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I support you today?

USER: I need a direct flight to New york.

ASSISTANT: Sure, may I know your price limit?

USER: Will you aid me with booking? My price limit is 1000.

ASSISTANT: Can you please provide me your journey dates?

USER: Sure, depart date is on 02/18 and return date is 02/20.

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

USER: My destination is LGA and origin is LAX.

ASSISTANT: May I know your good name?

USER: Angela Wright.

ASSISTANT: Thanks for providing your name. Sorry to say that, no flights was found with your given details.

USER: Ok, thanks for informing.

ASSISTANT: Thanks for choosing us.