You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I planned to meet my friend in AUS, can you please help me to book a flight ticket from PHL?

ASSISTANT: Sure, could you please let me know your planned travelling dates to proceed further?

USER: I prefer to travel on Apr 15 and Apr 17.

ASSISTANT: Please let me know if you need a connecting flight.

USER: I prefer to travel in a connecting flight.

ASSISTANT: Can I know your name please?

USER: I am John Allen.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, no problem.

ASSISTANT: You are most welcome and have a nice day.

USER: Thank you for your information.