You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need you to book a flight ticket from PHL to LAX. Please help me.

ASSISTANT: Sure, can you share your trip dates?

USER: July 31 and August 02 are my planned travelling dates.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a break in between my journey.

ASSISTANT: Is there any class preference?

USER: Nothing to state.

ASSISTANT: Are there any other specifications?

USER: Nothing much to let you know.

ASSISTANT: Please forward your name.

USER: Brandon Phillips here.

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

USER: That's ok. Thanks for your time.

ASSISTANT: Thank you.

USER: You are welcome.