You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to attend a Music festival at PA-PHL, can you please help me in booking a flight ticket?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travel dates are from 11/14 to 11/16.

ASSISTANT: Could you please share me your source airport code?

USER: My source is at NV-LAS.

ASSISTANT: Do you need any halt in between your journey?

USER: I need a halt in between my journey.

ASSISTANT: May I know your good name please?

USER: I am John Wilson.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry to inform that, there is no flights found on your route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thanks for reaching us.