You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Margaret Garcia. I would like to go for shopping around the Washington, DCA.

ASSISTANT: Ok.

USER: Can you please make  a reservation with connecting flight?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates on 04/04 and 04/06.

ASSISTANT: Kindly, mention your origin airport code.

USER: Its, a round trip.

ASSISTANT: Ok. No flights found on your journey dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.