You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you at this moment?

USER: Can you please help me in booking my flight ticket from LAX to PHL?

ASSISTANT: Sure, I am here to help you with that. Can I know your planned trip dates?

USER: Thank you and my travelling dates are from 08/26 to 08/28.

ASSISTANT: May I know your name?

USER: Myself Jason Jones.

ASSISTANT: Do you have any other requirements?

USER: I need a single connecting flight.

ASSISTANT: Ok, wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flights available based on your travelling dates.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for approaching us.