You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can aid you at present?

USER: I am planning to book a flight from PHL to EWR, will you please help me in booking?

ASSISTANT: Sure, Could you please share your planned dates?

USER: My planned dates are on Aug 8th to 10th.

ASSISTANT: Ok, May I know your connection limit?

USER: No, I prefer a direct flight.

ASSISTANT: Ok, Do you have any other specifications?

USER: I would like to travel in evening time.

ASSISTANT: May I know either it is depart or arrival?

USER: Please make sure that it is a return time.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that, there were no flights running to that location due to abnormal weather conditions.

USER: Not a problem, I will choose another airline to go.

ASSISTANT: Can I have your name for documentation purpose?

USER: Sure, my name is Donald Mitchell. Thank you for your services.

ASSISTANT: Thank you for reaching us.