You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I want to book a flight ticket to attend an event which is going to held at DC. Can you help me?

ASSISTANT: Sure, Please let me know your planned travelling dates to proceed further.

USER: Jan 14th and 16th are my travelling dates.

ASSISTANT: May I know your boarding and landing airport codes?

USER: LAX and DCA are my airport codes.

ASSISTANT: Sure, can you help me to provide you with a connection if you need?

USER: I need a connecting flight.

ASSISTANT: Can I have your name please?

USER: William Wright.

ASSISTANT: Would you like to avail any benefits for the comfort of your journey?

USER: No.

ASSISTANT: Let me check the availability of flights and revert to you.

USER: Ok.

ASSISTANT: Thank you for waiting, 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 approaching us.