You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Melissa Green, can you please aid me in booking my flight ticket to ATL from IAD?

ASSISTANT: Sure, kindly please share your connection limit.

USER: I need a connecting flight.

ASSISTANT: Ok, When you are willing to travel?

USER: I am willing to travel from May 28 to May 30.

ASSISTANT: Ok, Is there any class preference?

USER: I need an economy class.

ASSISTANT: Sorry for inconvenience, there were no flights running at that location due to abnormal weather conditions.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for consulting us.