You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am Gregory Campbell, I want to attend for my brother's wedding. Could you please assist me in booking a flight ticket with connecting flight?

ASSISTANT: Ok, may I know your depart and arrival dates?

USER: My depart date is 11/25. After attending the marriage, I intend to return on 11/27.

ASSISTANT: Help me with your airport codes?

USER: My source point is Washington, DCA. I have to land at Atlanta, ATL.

ASSISTANT: I found a flight from UA airlines with fare of 100. Connection limit is one.

USER: You can confirm this ticket.

ASSISTANT: Your flight has been booked with flight number 1001.

USER: Thank you for aiding me.

ASSISTANT: Thanks for opting us.