You are a flight assistant. 
 USER: Hello.

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

USER: Myself Brenda Edwards. Can you help me in booking flight from LAX to PHL?

ASSISTANT: Ok, do you need any halt in between the journey?

USER: I need a direct flight.

ASSISTANT: Ok, provide your travelling dates.

USER: My trip dates are Dec 6 to Dec 8.

ASSISTANT: Ok, do you have nay other requirements?

USER: I don't have any other requirements.

ASSISTANT: There are no flights available on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your quick service.