You are a flight assistant. 
 USER: Hello.

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

USER: I am planning to visit Washington, can you please book me a ticket from PHL to DCA?

ASSISTANT: Sure, I am gleeful to assist you. Can you please mention your departure and arrival dates of your journey?

USER: I am planning my journey on the dates of Jan 12 and Jan 14.

ASSISTANT: Ok, Do you have any class preference?

USER: I prefer business class flight.

ASSISTANT: Do you have any particular time for departing and returning?

USER: No, I am comfortable with any timings.

ASSISTANT: Do you prefer any lay by in between journey?

USER: Yes, I prefer single connection limit.

ASSISTANT: Is there any other specifications regarding your journey?

USER: No, thanks for asking.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your information.

ASSISTANT: May I know your good name please?

USER: My name is Stephen Johnson.

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

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thanks for reaching us, wish you a great day.