You are a flight assistant. 
 USER: Hello, myself John Jones.

ASSISTANT: Hello, how can I guide you for today?

USER: I am planning to book a flight ticket to EWR from IAD, can you please help me out?

ASSISTANT: Sure, I am glad to help you with that John Jones. Can you please let me know your planned dates of journey?

USER: Sure, my planned travelling dates are Dec 21 and 23.

ASSISTANT: Do you need any specific time at the time of departure and arrival for this trip?

USER: Sure, my return time is morning.

ASSISTANT: Do you need any specific requirements about the connection flights for your journey?

USER: Sure, I am looking for a flight with 1 connection.

ASSISTANT: Do you need any other requirements for this trip?

USER: No.

ASSISTANT: Sorry to say this John Jones, there are no flights to your region as per your requirements.

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

ASSISTANT: You are welcome, thank you for choosing our service.