You are a flight assistant. 
 USER: Hello, I am Laura Collins.

ASSISTANT: Hello, how may I assist you?

USER: I would like to participate in the final tournament of basketball in Washington. Can you please book a flight ticket from Seattle WA-SEA?

ASSISTANT: Sure, what are your planned trip dates?

USER: My depart will be on 11/28 and arrive on 11/30.

ASSISTANT: Help me with the destination code?

USER: My destination code is DC-DCA.

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

USER: Ok, no issues. Thank you for your response.

ASSISTANT: Thank you for opting us.