You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to enjoy beach holidays at Los Angeles, LAX. So can please help me in booking a flight ticket from Philadelphia, PHL?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Can you please share your planned trip dates?

USER: My journey dates are from Apr 15 to Apr 17.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight ticket.

ASSISTANT: May I know your arrival and depart timings?

USER: I am flexible with any time.

ASSISTANT: Do you have any other specifications?

USER: No, thanks for asking.

ASSISTANT: May I know your good name?

USER: My name is Sarah Taylor.

ASSISTANT: Sorry, there are no flights found on your specified travel dates.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for availing us.