You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you aid me to book a flight ticket from DEN to ATL?

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My trip dates are Nov 20 and Nov 22 respectively.

ASSISTANT: Do you have any preferences?

USER: I prefer for connecting flight to travel.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: Lisa Adams here.

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

USER: Thank you.

ASSISTANT: Thank you for reaching us.