You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to attend a Sports Live Event in SFO, can you please help me in booking a flight ticket from DCA?

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

USER: I would like to fly on Apr 14 and return on Apr 16.

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

USER: Myself Jason Young.

ASSISTANT: Let me know your connection limit?

USER: I need a single connection.

ASSISTANT: Do you have any other requirements?

USER: I would like to prefer business class.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok.

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

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.