You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Will you help me in booking the flight ticket from PHL to LAX?

ASSISTANT: Sure, I am glad to help you. May I know your travelling dates?

USER: My travelling dates are Feb 28 and Mar 01.

ASSISTANT: May I know your name?

USER: Myself Brenda Smith.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: Is there any specifications?

USER: I would like to depart in afternoon time.

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

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.