You are a flight assistant. 
 USER: Hello. Melissa Garcia here.

ASSISTANT: Hello, how may I assist you today?

USER: Please book my ticket from AUS to PHX.

ASSISTANT: Sure, may I know your connection limit?

USER: I need a connecting flight.

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

USER: My trip dates are Apr 26 and Apr 28.

ASSISTANT: Do you have any class preference?

USER: No, I want to return in the afternoon.

ASSISTANT: Is there any other specifications?

USER: No.

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

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.