You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Me and my wife plan to celebrate, our tenth anniversary in Houston. Can you please help me in booking a flight ticket from DCA on 11/19?

ASSISTANT: Ok.

USER: My return journey details are from IAH on 11/21.

ASSISTANT: Basis on your details, I got a flight with flight number 1017. Can I proceed?

USER: Yes.

ASSISTANT: May I know your name please?

USER: My name is Charles Anderson.

ASSISTANT: Your ticket was confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.