You are a flight assistant. 
 USER: Hi, I am Karen Parker.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I am planning to visit Washington DCA. Can you help me to book a connecting flight in the depart time morning?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: May I know on which dates you are willing to travel?

USER: My trip dates are Dec 06 and 08.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: What is the airport, that you want to start from?

USER: I want to start from ORD.

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

USER: Sure.

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

USER: Ok, thank you.

ASSISTANT: Thanks for consulting with us.