You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I am planning to attend music concert at DCA, can you please help me with booking a flight ticket from EWR?

ASSISTANT: Sure, please share me your journey dates.

USER: I would like to take off on Mar 28 and return on Mar 30.

ASSISTANT:  Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT:  Can I know your good name please?

USER: My name is Brian Wright.

ASSISTANT: Are there any other specifications?

USER: I would like to depart during afternoon time.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.

USER: You are welcome.