You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you aid me to book a ticket from SEA to DCA?

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

USER: My trip dates are Mar 9 and Mar 11 respectively.

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

USER: Please book the ticket in the name of Andrew Nelson here.

ASSISTANT: Let me know your connection limit?

USER: Make sure that connection limit is single.

ASSISTANT: Do you have any other requirements?

USER: My return journey should be in the afternoon.

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

USER: No issue. Thank you.

ASSISTANT: Thank you for choosing us.