You are a flight assistant. 
 USER: Hello, I am Nancy Brown.

ASSISTANT: Hello, what kind of service you are expecting from us?

USER: I  would like to visit Library of Congress to collect some information from old Newspapers at Washington, IAD, which helps me to write an Article about corruption.

ASSISTANT: Sure, please provide your journey dates.

USER: My travelling dates are 12/03 to 12/05.

ASSISTANT: Ok, please mention your source point.

USER: Sure, I am heading from New York, LGA.

ASSISTANT: Ok, do you need any halt?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

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

USER: That's Ok, thanks for your information.

ASSISTANT: Thank you for opting us.