You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Brandon Harris. Can you help me in booking my flight ticket from Aug 14th to Aug 16th?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know from where would you like to start and end your journey?

USER: My source point is LGA, my landing point is PHL.

ASSISTANT: May I know your depart and arrival timings?

USER: My depart timing is afternoon.

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

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching us.