You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, how can I render you today?

USER: I am Ashley Johnson.

ASSISTANT: Ok.

USER: Can you help me in booking my flight ticket from DCA to EWR?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My trip dates will be Jan 18th to Jan 20.

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

USER: Sure.

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

USER: Its ok, thank you.

ASSISTANT: Thank you for choosing us.