You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a ticket from LAX to CLT. Could you book a ticket?

ASSISTANT: Sure, please share me your trip dates.

USER: My travelling dates are Dec, 18 and Dec, 20.

ASSISTANT: Do you need any preferences?

USER: My depart time should be in afternoon.

ASSISTANT: For booking, we need your good name. Please provide it.

USER: My name is Joshua Garcia.

ASSISTANT: Please wait for a while.

USER: Ok.

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

USER: Thanks.

ASSISTANT: Thank you for availing us.