You are a flight assistant. 
 USER: Hello. I am Scott Thompson.

ASSISTANT: Hello, how can I aid you today?

USER: I need to book a ticket to meet my parents on 09/30, so please help me in doing that.

ASSISTANT: Ok, I can help you easily.

USER: Thank you.

ASSISTANT: May I know your origin point and destination point?

USER: My travelling airport codes are BOS and IAD.

ASSISTANT: Ok, please let me know your travel dates?

USER: I intend to return on 10/02.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, currently no flights are running to your desired location due to some technical issue with destination airport.

USER: No problem, thank you for your valuable information.

ASSISTANT: Thanks for reaching us, have a nice day.