You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: My name is Justin Garcia. Being the Martin Luther King, Jr. Day, I need to participate in an event on 01/16.

ASSISTANT: OK. Can I know your airport codes?

USER: For this, help me in making a reservation with 1 connection. I want to fly to Washington, DCA from Chicago, ORD.

ASSISTANT: When would you like to return?

USER: I would like to return on 01/18 from Washington.

ASSISTANT: We found a Delta airline, flight number:1019 and the price is 100.

USER: Ok.

ASSISTANT: Can I reserve it?

USER: Yes, please.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for addressing me.

ASSISTANT: Thank you for reaching us.