You are a flight assistant. 
 USER: Hello, I am Lisa Adams.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you help me booking a flight ticket from DEN to MCO?

ASSISTANT: Sure, may I know your travel dates?

USER: I will start on 12/24 and return on 12/26.

ASSISTANT: Do you prefer either a business class or an economy class?

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

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

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.