You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am planning to book a flight ticket to PHL from LAX, can you please help me out?

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: Sure, my trip dates are Sept 09 and Sept 11.

ASSISTANT: Do you need a break in between your journey?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Please help me with your name.

USER: My name is Stephanie Carter.

ASSISTANT: Do you have any other preferences in your journey?

USER: Yes, I prefer business class.

ASSISTANT: Please let me know if you have any other preferences in your journey.

USER: No more preference.

ASSISTANT: Please allow me a minute.

USER: Ok, take your time.

ASSISTANT: Stephanie Carter, I am really sorry to inform you that there are no flights available for your journey.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us. Have a great time.