You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: This is Nicole Brown, can you help me to book a flight ticket from BOS to PHL?

ASSISTANT: Sure, can you please share your journey dates?

USER: I am travelling from Sept 9 to Sept 11.

ASSISTANT: Do you have any specifications to be met?

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

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, unfortunately no flights found on that route.

USER: That's ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thank you for the information.