You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please book a flight ticket from DCA to IAD?

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

USER: My travelling dates are 03 and 05 of Nov.

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

USER: Donald Edwards.

ASSISTANT: Let me know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I need a ticket in business class which should return in the afternoon.

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

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for choosing us.