You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Myself Christine Moore from Washington. I am planning to visit San Francisco for a business meeting, can you please help me out with booking of a flight ticket from DCA to SFO?

ASSISTANT: Sure, May I know the journey dates?

USER: Thank you for your response, I want to departure on 08/13 and please confirm my return ticket also on 08/15.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: We have found a direct flight from UA airline. Shall I proceed?

USER: That's ok, please confirm this flight ticket for me.

ASSISTANT: Your ticket has been booked with the flight number 1025.

USER: Thank you for assisting me.

ASSISTANT: Thank you for opting us.