You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to book a flight ticket from DCA to EWR, can you please help me?

ASSISTANT: When you are willing to travel?

USER: I planned my trip on the dates Nov 9 and Nov 11.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: May, I know your good name?

USER: Myself Ryan Gonzalez.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: No, issue. Anyway thank you for checking.

ASSISTANT: Thank you for reaching us.