You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you at this moment?

USER: Can you please help me to book a flight from IAD to ATL?

ASSISTANT: Could you please ensure your preferable dates?

USER: Sure, I want to travel on Jan 1 and need to return on Jan 3.

ASSISTANT: Do you prefer a connecting or direct flight?

USER: I prefer a connecting flight to travel.

ASSISTANT: Are there any more specifications?

USER: No.

ASSISTANT: For booking purpose I required your name, can I know your name?

USER: Please book my ticket under the name of Elizabeth Adams.

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

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for choosing us.