You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I give assistance to you?

USER: James Nelson here. Can you please book a ticket from DCA to EWR? As I'm planning to visit New York.

ASSISTANT: Sure, Can you please provide your planned journey dates?

USER: Sure, my planned departure and return travel dates are 29th of Nov and 1st of Dec.

ASSISTANT: Ok, let me know your connection limit.

USER: Sure, my maximum connection has to be 1.

ASSISTANT: Ok, May I know your class preference?

USER: No, I'm ok with any class but I prefer normal-cost airlines.

ASSISTANT: Please mention your depart and return timings.

USER: I want to return in the afternoon.

ASSISTANT: Ok, please wait for sometime.

USER: Sure, take your own time.

ASSISTANT: Sorry for the inconvenience, there were no flights running to that location due to bad weather conditions.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for choosing us.